• Introduction – the four main phases of the war
• The role of individual rulers
• Why was the Thirty Years War important?
• Wilson’s interpretations of the war
• The deep historical context of the Thirty Years War
• The Holy Roman Emperors
• Issues facing the Holy Roman Emperor in the early 17th century
• The role of religion in the Thirty Years War
• Events leading up to the Thirty Years War
• The defenestration of Prague 1618
• The Edict of Restitution 1629
• The role of Sweden
• Historical events happening alongside the Thirty Years War
• The Peace of Westphalia
• Devastation and disease
• Summary
  • It’s a long book
  • Writing about war requires special skills
  • Not enough signposting of key events
  • Wilson’s revisionist intentions
  • Wilson’s interest in the finances of the war
  • Lack of maps
• Conclusion
• Video of a lecture by Wilson about the war
• Appendix: Origin of the word ‘Protestant’

Introduction

This is an enormous book (weighing in at 997 pages, including index and notes) which covers an enormous subject, in enormous depth.

The Thirty Years War lasted from 1618 to 1648. It was in fact made up of a series or sequence of wars featuring different antagonists. The central strand linking them is that the staunchly Catholic Holy Roman Emperor Ferdinand II was fighting mainly Protestant opponents, and that he mostly won. The war is usually divided into four phases:

• The Bohemian Revolt 1618-20, a rising of the Protestant Bohemian ‘Estates’ against Habsburg rule (‘The revolt was not a popular uprising, but an aristocratic coup led by a minority of desperate militant Protestants’, p.269), which was decisively crushed at the Battle of White Mountain on 8 November 1620.
• The Danish intervention 1625-30, also referred to as the Low Saxon War or Emperor’s War, when Christian IV of Denmark (who was also Duke of Holstein and Schleswig which lay within the Empire) led an army in support of north German protestant states against Imperial forces. After five or so years of fighting, the war was concluded with the Treaty of Lübeck in 1629.
• The Swedish intervention 1630-35, when King Gustavus Adolphus of Sweden led an invasion of north (and mostly Protestant) Germany. He was motivated by a) alarm at the Emperor’s harsh reimposition of Catholicism on the German states under the Treaty of Lübeck b) the goal of gaining economic influence in the German states around the Baltic Sea. Like Christian IV before him, Adolphus was heavily subsidized by Cardinal Richelieu, the chief minister of Louis XIII of France, who gave him a million livres a year. Gustavus Adolphus died in battle in 1632 but his forces continued the war until the Peace of Prague in 1635 brought peace between most of the Empire’s Protestant states and the Emperor.
• The French intervention 1635-48, as you can see this is the longest single part of the war. Cardinal Richelieu feared the power of the Habsburg empire on his eastern border and used innumerable policies, treaties with the Danish and Swedes to try and limit and hamper Ferdinand. Finally this broke out into overt war.

This summary nowhere near conveys the complexity of the wider context within which these conflicts took place. When the war broke out, Spain was stuck in a never-ending conflict with its provinces in the Netherlands, what would eventually be called the Eighty Years War (1568-1648) and where its brutal suppression, inquisition, torture and execution of Protestant rebels laid the foundation for the Black Legend of Catholic Spain’s scheming brutality, compounded, in 1588, when the Spanish launched the Great Enterprise, the plan for an amphibious invasion of England to overthrow the Protestant monarch and return to England to being a good Catholic country under Spanish tutelage – what we refer to as the Spanish Armada.

France was a fellow Catholic country and so should have supported both the Emperor and Spain, but in fact politicked against both of them at every turn. For example, the French government supported the Dutch against the Spanish in order to keep the Spanish bogged down, wasting money in the Netherlands, and so presenting less of a threat to French power.

There were other flashpoints such as in Italy where Spain controlled the duchy of Milan. Italy was where the (relatively small-scale) War of the Mantuan Succession (1628–31) broke out and drew in the other European powers in parallel to the 30 Years War. Savoy in north-west Italy, which maintained a precarious independence from the Empire while being eyed by France, was another flashpoint.

In the south-east of Europe, the Holy Roman Empire was threatened by attack from the Ottoman Empire, whose power stretched far into modern-day Hungary (although for long stretches the Turks were distracted by the war they were fighting on their Eastern border against the Persian Empire under Shah Abbas the Great (p.100) who launched a fierce invasion capturing Baghdad in 1623 (p.103.)

North of Hungary there were repeated clashes over the border territory of Transylvania, and this drew in two other powers to the East of the Empire, namely Russia (or the Duchy of Muscovy, as it was commonly referred to), and the Polish-Lithuanian Commonwealth, who periodically fought each other.

When Gustavus Adolphus invaded north Germany it was not only to support the struggling Protestant German states, but in order to solidify his power in the Baltic as a whole, specifically projecting his power into Polish territory, who Sweden was, at one stage, directly at war with.

In other words, the Thirty Years War only makes sense – or you can only understand the motives of all the sides – if you appreciate a) the total context of European geopolitics of the time and b) you grasp that all the numerous states of Europe and beyond were continually prepared to use ‘war’ to further their ends.

Accustomed to two disastrous world wars, it is hard for us to reach back to a mindset in which wars were envisioned as relatively limited operations and completely acceptable methods to achieve power-political and territorial ends. To give an example of how it worked, we read time and again of kings or emperors continuing to deploy their armies, while at the same time hosting peace talks and negotiations, each victory or defeat in a local battle, strengthening or weakening their bargaining positions.

Discussions, negotiations, conferences and diets and assemblies, embassies and missions continued between all parties even while armed conflict broke out, was carried on, or suspended during truces.

The role of individual rulers

After the first 500 pages or so I realised I was becoming heartily sick of reading about the endless fighting over the same bits of territory, mainly because the little battles and squabbles come to seem utterly senseless. From the hundreds of separate micro-conflicts which made up the big ‘wars’, what came over most strongly to me was how many of them were driven by personal ambitions.

The entire social structure of the day was build around a fractious, rivalrous and competitive aristocracy who paid nominal homage to their king or emperor but who in reality were endlessly jostling for titles and land and possession. Apparently this was particularly true in France, with senior members of families related to the royal line (‘princes of the blood’) continually conspiring and politicking against each other (p.372).

The Holy Roman Empire was different and vastly more complex because it was made up of four major ‘states’, within which sat 40 or so duchies and princedoms, within which or alongside existed a large number of free cities and autonomous regions – from the very large to the very small, each with their own rulers and constitutions and parliaments or ‘Estates’, as they were called, their traditions and fiefs and privileges and customs and taxation systems, who were joined by a variety of links to the figure of the Emperor.

There were seven Electors, so-named because they were the electorate who chose each new emperor, being the archbishops of the imperial cities Mainz, Cologne and Trier, then the King of Bohemia, the Count Palatine of the Rhine, the Duke of Saxony, the Margrave of Brandenburg. There were fifty spiritual and 30 lay fiefs held by lords of princely rank and then some 200 lesser fiefs, and then 400 or so baronial and knightly families. There were 80 ‘free and imperial cities’. States which were large enough earned the right to attend the imperial Reichstag which was more of a consultative body than a parliament, where the emperor was meant to get his way through negotiation and concessions.

Everyone was competing against everyone else. Everyone wanted more land, more power, to expand their territory, seize new towns and ports and cities and bishoprics and titles and forests and land. And warfare offered a quick way of achieving these ambitions, not only for the rulers who owned armies but for their generals. A massive motivation for being a general in the army was that, if you were successful, you were rewarded with titles and land.

At a very high level the wars can be presented as conflicts between Protestants and Catholics, or between France and the Empire, or between Spain and the Dutch. But at the level Wilson describes, the conflict breaks down into scores of micro-conflicts between Electors and local rulers who had their eye on this or that piece of nearby territory, fighting or negotiating to acquire bishoprics or cities or control of fisheries or forests.

And when large states were defeated, the leader of the victorious forces (for example Gustavus Adolphus or Ferdinand, in the middle Swedish part of the war) was able to parcel out and award all the conquered territory to his successful generals and followers. Thus ‘ownership’ of land could pass through multiple hands which, of course, created an ever-expanding set of grievances and wishes for revenge or reconquest etc.

Seen from a really high level the war amounted to a succession of armies tramping across the same old territory, fighting each other to a standstill or dropping like flies from dysentery and plague, while ravaging the land around them, burning villages and towns, consuming all available food and ruining agricultural land and livestock, devastating the very territories their lords and masters were squabbling over like spoilt children. It is estimated that around a third of the Empire’s cultivable land had been abandoned by 1648 (p.802). Grain production didn’t return to 1618 levels until 1670 (p.806).

And this is what amounted to statecraft in early modern Europe. Endless rivalry and conflict, continually spilling over into ruinous wars.

Why is the Thirty Years War important?

Wilson explains why the Thirty Years War was and is important in his (relatively brief) introduction:

About 8 million people died in this huge, prolonged and devastating war. Many regions and cities of Germany didn’t recover for a hundred years.

The war occupies a place in German and Czech history similar to that of the civil wars in Britain, Spain and the United States, or the revolutions in France and Russia. A defining moment of national trauma that shaped how a country regards itself and its place in the world.

For most Germans the war came to symbolise national humiliation, and was blamed for retarding the economic, social and political development of the country, condemning Germany to 200 years of internal division and international impotence, until Bismarck began the process of German unification in the 1850s.

Wilson’s interpretations

Right at the start Wilson explains that his huge history has three big underlying aims which deliberately set it apart from most ‘traditional’ histories of the conflict:

1. Most accounts simplify the extraordinary complexity of the war. Wilson seeks to restore all of its complexity and the complex way it evolved out of, and interacted with, other parallel conflicts in the Europe of the time (notably the Spanish-Dutch war). But above all he wants to show how the central thread running through the war is their common relationship to the imperial constitution. The emperor wanted to secure peace in his Empire, to enforce the imperial constitution.

2. Thus Wilson wants to assert that the war was not a war of religion. It is true that the Emperor was a staunch Catholic and the Bohemian rebels, the king of Denmark and the king of Sweden were Protestants, and Protestant imperial states (notably the Palatinate and Saxony) allied with them. But Wilson wishes to emphasise that the primary causes were not religious but were – in his view – driven by conflicts over the rights and freedoms allowed the states by the imperial constitution, a constitution the Emperor Ferdinand II had sworn to uphold. Contemporaries rarely spoke or wrote about Protestants or Catholics – they spoke about Saxons or Bavarians or Swedes or Danes or French or Spanish troops. In Wilson’s view, the focus on Protestants and Catholics is a construction of 19th century historians who a) had their own religious culture wars to fight and b) sought to simplify the war’s complexity.

3. It was not inevitable. The Empire had been at peace after the 1555 Treaty of Augsburg, in fact the period from 1555 to 1618 was the longest period of peace Germany experienced until after 1945. Meanwhile civil war raged in France and a bitter struggle in the Netherlands. So war was not inevitable and not the result of inevitable religious divisions. It was more the result of fortuitous and contingent events, starting with the decision taken by a small number of Bohemian aristocrats to rebel against imperial rule, which triggered a conflict in which some of the Protestant states (namely Saxony and the Palatinate) decided to take sides, before the king of Denmark made an unpredictable and personal decision to take advantage of the confusion in north Germany to try and expand his territory. And when the Danish venture had clearly failed, by 1629, the king of Sweden then decided to have a go himself, in order to seize north German territory and solidify his power in the Baltic.

None of these three events were inevitable, they were the contingent decisions of small groups of individuals, kings and their advisors, who decided to use warfare for the traditional goals of expanding their territories and power.

The deep historical context of the Thirty Years War

Wilson’s account doesn’t arrive at the outbreak of actual hostilities until page 269, nearly a third of the way into the book.

This is because, to understand a) why the war broke out b) why it spread c) why it became so horribly complicated, you need to have as full a grasp as possible of the history and complex constitution of the Holy Roman Empire, and of all the neighbouring countries which had an interest in what was happening in Central Europe.

This includes (going in clockwork direction) Spain, France, Britain, the Spanish Netherlands, the Dutch, Denmark, Sweden, Russia (Muscovy), Poland (the Commonwealth of Poland), Transylvania, Hungary, the Ottoman Empire, Serbia, Croatia, the Republic of Venice and various other Italian states, not least the Papacy, and Savoy.

Wilson gives us the deep history not only of the Holy Roman Empire itself, but of all these other countries, for each of them delving back into the 1500s, often into the 1400s, sometimes as far back as the 1300s, in order to explain the dynastic struggles, arranged marriages, land grabs and redistributions and wars which formed the mind-bogglingly complex web of political and military relations across the Europe by the start of the 17th century. (I think the earliest of these references is to 1160, the year when the Hanseatic League was founded, page 176.)

The war was deeply bound up with the complex practices of inheritance, for example the routine appointment, in noble families, of younger sons as prince-bishops or prince-abbots, and the complexities of dynastic marriages between ruling families of different states and principalities.

The Holy Roman Emperors

I found the sequence of Holy Roman Emperors a little hard to follow, though on the face of it there’s a simple enough succession:

• Rudolph II (1576 to 1612)
• Matthias (1612 to 1619)
• Ferdinand II (1619 to 1637)

Looks simple, doesn’t it, but Wilson places this trio and their reigns within the context of the vast Habsburg empire ruled by Charles V (1519 to 1556). Charles inherited extensive domains, including all of Spain and its new colonies in South America, Austria and territories scattered all across Germany, Hungary and Bohemia, in the Netherlands, and large chunks of Italy (e.g. Sicily and Naples). (Wilson gives an extended description of the growth of Spanish colonies in the New World, their use of slavery, and the importance of the silver trade, pages 116 to 121.)

It was Charles V who decided he had to divide this unwieldy entity into two massive parts (p.50), the Habsburg Partition of 1558. He gave Spain, the Netherlands and the New World to his son Philip II of Spain, and Austria and the Imperial territories of central Europe to his younger brother, the Emperor Ferdinand I (1556 to 1564).

Thus the creation of a Spanish branch and an Austrian branch of the Habsburgs or ‘family firm’.

But of course it was more complicated than that because 1) the Austrian emperor had numerous other titles, and these were awarded by a range of bodies within his scattered states, each with its own constitution and procedures. Thus the Austrian ruler was at the same time King of Bohemia, King of Hungary and Croatia. But he needed to be elected King of Germany by the seven electors (see the list, above). In general the next-in-line to the throne was elected while the current one was still alive, and received the honorary title ‘King of the Romans’ (a bit like our Prince of Wales).

Incidentally that title indicates the deeply held belief that the emperor was descended from the rules of ancient Rome and, like the later Roman emperors, carried the responsibility for the defence of all Christendom.

And 2) because the emperor was elected, this meant there were other candidates – although in practice this meant only other Habsburgs, in Ferdinand’s case, his brothers. Nonetheless these alternative candidates might be supported by various nations or special interest groups within the Empire because they thought this or that candidate would give them better rewards and payoffs.

So as the Holy Roman Emperor who ruled just before the war broke out – Rudolf II – sank into madness or mania, his eventual successor Matthias had not only to face rival candidacies from his brothers Ernst, Maximilian and Albert, but found himself drawn into a prolonged conflict with Rudolf which lasted so long and was so destructive that it gained a name of its own, the Brothers’ Quarrel. As Wikipedia puts it:

The Brothers’ Quarrel was a conflict between Rudolf II, Holy Roman Emperor and his brother, Matthias in the early 17th century. Their other brothers – Maximilian III and Albert VII – and their cousins – especially Ferdinand II and Leopold V – were also deeply involved in their dispute. The family feud weakened the Habsburgs’ position and enabled the Estates of their realms to win widespread political and religious concessions.

Supporters and opponents in this intra-Habsburg rivalry came not only from within the Empire, but from the other wing of the Habsburg firm, in Spain, as well as from a range of nations bordering the Empire. (So, for example, we find the King of Spain leaning on Matthias to make his older cousin, Ferdinand, his successor [which is what happened] in preference to the more unpredictable cousin, Leopold.)

So, even before he was elected, the Holy Roman Emperor had to have advanced political and diplomatic skills.

Early 17th century issues facing the Holy Roman Emperor

And when he finally did come to power, the Emperor faced a number of ongoing issues, which Wilson describes in detail, including:

• the religious wars in France from 1562 to 1598, which the emperor had to be careful not to get involved in
• the immense Eighty Years’ War or Dutch War of Independence (1568 to 1648), the revolt of the Seventeen Provinces of what are today the Netherlands, Belgium, and Luxembourg against Philip II of Spain, the sovereign of the Habsburg Netherlands – which frequently spilled over into north-western territories of the Empire
• ongoing wars between Denmark and Sweden for primacy in the Baltic
• the Time of Troubles, a period of anarchy, famine and civil war in Russia, 1598 to 1613
• war between Poland and Russia
• and, of course, the largest threat of all – from the Ottoman Empire, ‘the terror of Europe (p.76), whose power stretched into Hungary and which permanently threatened to invade up the Danube into the Austrian heartland itself. This threat had flared up most recently in the Long Turkish War or Thirteen Years’ War, fought over the Principalities of Wallachia, Transylvania and Moldavia from 1593 to 1606

These were just some of the geopolitical issues which the Emperor inherited, continually having to assess which side, if any, to back in all these wars, and prevent physical or political damage to polities within the Empire. And that was before you get to the issues and conflicts bubbling away within the territories which he directly ruled.

In this high-level map of the European context, note:

• how far into Europe the Ottoman Empire extended, pressing up through Hungary, and why Wallachia and Transylvania were important border states
• Spain’s territory in the south of Italy, and the south or Spanish Netherlands
• the distinction between the Holy Roman Emperor’s inherited Austrian holdings (in pink) and the German states which he ruled over but which had independent princes, Electors, margraves and so on (in orange)

The Thirty Years War in its European context (source: International History blog)

The role of religion in the Thirty Years War

And then there was religion. The disaffected monk Martin Luther kicked off the Reformation in 1517. His reformed version of Christianity spread quickly through some parts of the empire, gaining princely converts who were able to protect the feisty monk and theological rebel.

Despite Catholic attempts to crush it in the 1520s and 30s, by the 1540s the existence of large populations and important leaders who had converted to the new religion quickly became a fact of life within the Empire, which was finally ratified in the Treaty of Augsburg in 1555.

But this new religious conflict was just the latest in a litany of conflicting histories, traditions, cultures and languages, constitutions and processes which differentiated and separated inhabitants of the 1,800 or so states which made up the Empire (!).

What distinguished religion was that religious belief struck home to the real core of a person’s identity and psychology; and that the more devout the believer, the more they considered religion a matter of life and death, not only for themselves but for the world. Wilson has a fascinating passage (pages 261 to 262) describing the rise of apocalyptic writings and end-of-the-world interpretations of Bible texts which, he thinks, were partly sparked by the economically disruptive change in Europe’s climate which we now refer to as the Mini Ice Age.

That said, Wilson goes out of his way to emphasis that religion wasn’t an inevitable cause of conflict, and describes in detail a number of religious clashes in the late 16th and early 17th centuries where rulers sought and achieved compromise and peace. Thus it’s true that a Protestant Union was set up in 1608 and a Catholic Liga in 1609, but by 1618 the Liga had been dissolved and the Union marginalised (p.239).

Religion – like other cultural differences – only becomes a problem if some people are determined to make it a problem, in either of two obvious ways: 1) as a cynical tool to gain advantage or power, 2) because the trouble-makers genuinely believe that theirs is the Only Religion, and that their opponents are infidels, heretics, the Devil’s spawn etc.

Some leaders and some states were determined to use religion as a tool, namely the Protestant ruling class of the Palatinate, a fragmented territory in central and west Germany. For zealots like these the election of the devoutly Catholic Ferdinand II presented a threat.

But the Important Point to grasp is that, although all the successive Emperors were devout Catholics, they also had a good grasp of Realpolitik and so realised that they had to find peaceful accommodations and practice toleration for all their citizens. The emperors tried to hold the ring and contain and limit religious conflicts wherever they arose.

Another flaw with the argument that it was a religious war, is the fact that both ‘sides’ – the Catholic and Protestant ‘sides’ – were deeply divided among themselves, something Wilson explores in great detail (chapter 7); not only among themselves (there was a big gap between Lutherans and Calvinists), but also with their foreign sponsors or backers, e.g. Catholic Spain was at odds with Catholic France who, in 1635, went directly to war with the Catholic Emperor.

Thus Wilson opposes historians who see the war as an ‘inevitable’ result of the religious divide which ran through the Empire. He gives much more importance to the prolonged uncertainty about the Imperial Succession i.e. the Brother’s Quarrel, which pitted the ailing Rudolph against his likely successor Matthias (p.255 ff). In this prolonged struggle both sides conspired to weaken the other which, of course, merely weakened the Habsburg Dynasty as a whole, and handed more power to the Parliaments and Estates and other constitutional bodies which ran the Empire’s numerous constituent states, from big kingdoms like Bohemia and Hungary, through large German states like Saxony and Bavaria, down to the tiniest principalities.

Wilson sees the real cause of the war more in the wish of the states to consolidate the power they had wrested from a weakened Habsburg administration and, if possible, to opportunistically extend it.

Events leading up to the Thirty Years War

Having described this complicated situation in great detail, Wilson then describes a series of events which didn’t cause the war, but help to explain the attitudes and policies of the key players when the war broke out, including such little-known incidents as:

• The Bocskai Revolt 1604-6
• The Donauwörth Incident 1606
• The Jülich-Cleves crisis 1609 to 1610
• The Uskok War 1615 to 1617

There are others and with each one I realised a) the complexity of European politics in the 17th century b) that I know nothing about it.

The defenestration of Prague 1618

The elite of upper-class Bohemian nobles (just to explain that Bohemia was for centuries the name of the territory which, in the 20th century, was renamed Czechoslovakia and then the Czech Republic) felt aggrieved by Imperial decisions and appointments. A small number of conspirators decided to take direct action and one evening stormed the castle in Prague and three a couple of Imperial representatives (and their servant) out the window of their state apartment and into the moat.

However the three men did not die, but limped away, were hidden and made good their escapes. This was a bad omen, for the rising of the Protestant Bohemian nobility which the conspirators were aiming for wasn’t as whole-hearted as they wishes and, although some of the Empire’s Protestant states joined their rebellion (Saxony and the Palatinate) most didn’t, wisely waiting the outcome of events.

Briefly, after two years of battles and skirmishes across Bohemia and beyond, the Bohemian rebellion was crushed at the decisive Battle of the White Mountain in November 1620 and Prague was occupied by Imperial forces.

However, the rebellious Protestant provinces of central Germany still had to be brought to heel and this took three more years. And that process was only just being wound up when King Christian of Denmark decided to invade, so inaugurating the second of the four main phases of the war listed above.

I don’t have anything like the time or space or energy to even summarise what happened next. For a detailed account read the Wikipedia article.

• Thirty Years War Wikipedia article

The Edict of Restitution 1629

So the really key turning points are:

• 1618 start of the Bohemian rebellion
• 1620 The Battle of the White Mountain, where the initial Bohemian rebellion was crushed
• 1625 The entrance of Denmark under King Christian IV into the war
• 1630 the entrance of Sweden under King Gustavus Adolphus

But there’s another one – the passage of the Edict of Restitution in 1629. Having defeated Denmark’s forces, the Emperor Ferdinand II felt in a strong enough position to impose the Edict of Restitution. This attempted to turn back all the changes in ownership of religious land and property which had taken place since the 1555 Peace of Augsburg. In the intervening years there had been a steady flow of archbishopric, churches, monasteries (‘the secularised archbishoprics of Bremen and Magdeburg, 12 bishoprics and over 100 religious houses’) which had been expropriated by Protestant princes and rulers. The Edict attempted to reverse all these changes.

The result in 1629 and 1630 was a great transfer of power and property away from the Protestants to the Catholics. Thousands of Protestants had to leave places they’d lived in for generations and flee to Protestant territory.

The Edict applied especially to north-eastern Germany where the Emperor’s writ had been weak for a century. Ferdinand appointed Imperial administrators to take over the secularised states and cities in a bid to re-establish Imperial authority in areas where his control had become weaker.

Apart from alienating a lot of Protestant opinion, the Edict had two consequences. In 1630 Frederick had to call a meeting of Electors to have his son, also named Ferdinand, elected King of the Romans i.e. emperor in waiting.

However, some of the Protestant Electors stayed away from the meeting in protest at the Edict and others demanded, in exchange for supporting his son, that the Emperor sack his hugely successful but contentious general, Wallenstein. Reluctantly, Ferdinand did so, a victory for the dissident Electors and Protestant faction – and evidence for Wilson’s central thesis, that the war was more tied up with the complexity of the Imperial constitution and Imperial power than with religion per se, i.e. the Emperor could never just do what he wanted, but always had to work through the Reichstag, the Electors, the Estates and so on, in an ever-changing web of complicated negotiations.

Anyway, the second result was that the Edict provided the figleaf the king of Sweden, Gustavus Adolphus, needed for undertaking his invasion of north Germany.

The role of Sweden

As a newcomer to this vast and tortuous history, it’s hard to avoid the fairly simple conclusion that most of the war was Sweden’s fault. The Bohemians, the Danes and many of the Protestant states had been fought to a standstill by 1630, and the war could have been ended. Gustavus Adolphus’s invasion of north Germany meant that the war continued for another eighteen years – and, from what I understand, it was these later years which were by far the most destructive.

So the entry-level questions, for me, are: 1. why did Gustavus invade, and 2. – more importantly – why did the Swedes stay on in Germany for sixteen years after Adolphus died in battle in November 1632?

There appear to be three answers to question 1. Because Gustavus saw the chaos in north Germany as a) an opportunity to seize territory there and b) to consolidate Swedish control of the Baltic (against rivals Poland and Russia). And c) he and his chancellor, Axel Oxenstierna, presented themselves as ‘Champions of Protestantism’, rescuing the Protestant German states threatened by the Emperor’s Edict of Restitution (cynically or sincerely, who can say?).

So much for question 1. But it seems to me that the biggest question about the whole war is: Why did the Swedes stay on for a further 16 years, causing epic destruction and ruination across vast swathes of central Europe? The war caused devastation across all central Europe, but the Swedish armies alone may have destroyed up to 2,000 castles, 18,000 villages, and 1,500 towns in Germany, one-third of all German towns! They presented themselves as the champions of the Protestant cause, but in the final months before peace, the Swedes attacked and pillaged the area around Protestant Prague. Surely they weren’t ‘saviours’ but great destroyers?

(Wilson confirms my two-part interpretation on page 719, where he explains that, from Ferdinand’s point of view, the war fell into two parts – 1. the initial Bohemian rebellion which triggered revolts among various other Protestant rulers in Germany (namely the Palatinate and Saxony) and which was finally concluded with the Peace of Lübeck and the Restitution Edict); and 2. the Swedish part, by far the longest and most ruinous part.)

Historical events alongside the Thirty Years War

Eighty years war

Throughout the duration of the war, Spain was at war with the rebellious northern provinces of the Netherlands, although both sides managed to keep their conflict from the German war going on next door, even if there were localised incursions or aid, specially from the Protestant Dutch to some of the Protestant states.

British civil wars

In 1639, rebellion by Presbyterian Scots led to the First Bishops War, which triggered the descent of Britain into what is variously called the British Civil Wars or the Wars of Three Kingdoms (or the Great Rebellion by contemporary Royalists). It is fascinating to learn that irritation at Charles I’s support for the Emperor led Sweden to send arms and some officers to support the Scottish rebellion. (And also to learn that so many Scots served in the Swedish army, sometimes for decades, and had built up a wealth of practical knowledge of modern warfare. Meaning that, when in 1639 they returned to their homeland they were able to help Scotland thrash England in both Bishops’ Wars, 1639 and 1640).

I was also fascinated to read about two rebellions Spain faced, which added to her long-running war with the Dutch and the conflict with France. These were the rebellions of Portugal and Catalonia.

Portugal

The Portuguese rebelled in 1640, in what became known as the Portuguese Restoration War and lasted until 1668, eventually bringing an end to the union of the Spanish and Portuguese crown (the Iberian Union) and establishing the House of Braganza as Portugal’s new ruling dynasty, replacing the Spanish Habsburg who had ruled the country since 1581. It was a member of this ruling dynasty, Catherine of Braganza, who Charles II of Britain married in 1662, soon after his restoration, thus acquiring the territory of Tangiers, not much money, and a wife who proved incapable of bearing an heir, thus indirectly triggering the eventual overthrow of the Stuart dynasty.

Catalonia

The Reapers’ War Catalan revolt sprang up spontaneously in May 1640, leading King Philip IV sent an army to suppress it, which sacked several Catalan towns before being defeated outside Barcelona. The French seized the opportunity to take the country of Roussillon from the Spanish and sent arms and soldiers to help the Catalans in exchange for which the Catalans half-heartedly accepted the French king Louis XIII as King of Catalonia. The rebellion dragged on until 1659 when it was wound up as part of the wider peace settlement between Spain and France (the Peace of the Pyrenees).

Brazil

A small but fascinating sidelight is Wilson’s detailed account of the rivalry between the Dutch and the Portuguese in Brazil. Basically the Dutch in the 1630s confidently seized a lot of Portugal’s colonial holdings, but Portugal fought back, retaking most of the colony, leaving the Dutch to concentrate on their new colonies in the East Indies.

The Peace of Westphalia

One of the most fascinating aspects of the Thirty Year War was its conclusion, and the long peace conference which led up to the Treaty of Westphalia. Wilson makes the – to me – fascinating point that the peace conference invented the model of international negotiation which was consciously copied at all complex European peace negotiations ever since, at Utrecht in 1714, the Congress of Vienna in 1815, at the Versailles Conference in 1918-19 and which underpins the modern system reflected in the United Nations.

Early modern society was utterly drenched in the notion of hierarchy, starting with God at the top and moving down though his Son, to the angels, to the created world which had Christian kings at the top and their aristocrats, sharing top billing with the Pope and the top notables of the church on one wing, before finally reaching the urban bourgeoisie, and so on down to the peasants, squatting at the bottom. Then the animals.

In this hierarchical view, various nations of Europe fiercely competed to be Top Dog, which in their world meant being the Most Christian nation. It was a status claimed by Spain whose monarchs, after Ferdinand and Isabella had expelled the last Arabs in 1492, thus winning the title of Their Most Catholic Majesties – but also claimed by the Holy Roman Emperor who thought of himself as the Protector of all Christendom – while French kings tried to dignify themselves as the Arbiters of Christendom, and so on.

Certainly, there were lots of flunkeys and carriages and servants and grand display at the peace conference venues in the two Westphalian cities of Osnabrück and Münster. And yet, when it came down to negotiating, the various powers (chief among them the Emperor, Spain, France and Sweden, but also the Electors and other key German princes) were forced to acknowledge the interests and concerns of each other as free and independent entities.

In other words, through the long course of the negotiations (which began in 1643, and so lasted some five years) the conflicting parties were forced to abandon the Early Modern theory of Hierarchy, and adopt what we think of as the Modern Theory, that all nation states are free and independent, have absolute rights and interests and must be negotiated with as individuals.

The positive interpretation of Westphalia regards it as the birth of the modern international order based on sovereign states interacting (formally) as equals within a common secularised legal framework, regardless of size, power or internal configuration. (p.754)

The Emperor could no longer intimidate his dependent states with fine words and a big crown, but had to address their anxieties and requirements.

The final deal consisted of two treaties: the Peace of Osnabrück in which the Emperor settled all issues with Sweden and the states within the Empire, and the Peace of Münster, which settled outstanding issues with France, although carefully excluding the duchy of Lorraine which remained occupied by French troops (p.747).

Devastation and disease

The Thirty Years War became a byword for savagery and brutality even while it was going on. Contemporary accounts emphasised the burning and looting, raping and casual murders which infested the territory, and many artists captured this in disturbing visual form, such as the contemporary engravings of Jacques Callot.

Pillaging a house, plate 5 from the engraving series The Miseries and Misfortunes of War by Jacques Callot (1633)

(Other artists who documented the atrocities of war include Valentin Wagner, Rudolf Meyer and Pieter Snayers.)

But as you might expect, Wilson takes a sophisticatedly revisionist attitude to this as to every other aspect of the war. He labels the view that the war was an unmitigated catastrophe the ‘Disastrous War’ school of thinking, pointing out that different regions had widely differing experiences, which also varied over time. He takes a long cold look at the figures, pointing out all kinds of problems with contemporary records and definitions (for example ’cause of death’).

Nonetheless, it is clear that some regions of Germany saw a loss of 50% or more of their populations. There is agreement that some areas didn’t see a return to their 1618 population figures until 1710 or 1720 (p.795).

It used to be said that around a third of the total population of the Empire perished, but more recent figures revise this down. Still, to put it in context, Wilson points out that the Soviet Union is widely seen to have suffered extraordinary levels of death and devastation as a result of the 1942 Nazi invasion – yet fewer than 12% of the population perished. So even a ‘low’ estimate of 15% of the Empire perishing implies spectacular destruction.

But for me the standout insight is the usual one about almost any war, even into modern times:

Disease proved more potent than muskets, swords and cannon. (p.790)

And again:

The pattern of civilian deaths confirms the general picture of military casualties. Disease was the main killer. (p.792)

Human societies are very fragile things, often only just about able to provide food, clean water and sewage facilities for their existing populations. The second you start a war, and start displacing people, you interrupt the growth, harvesting and distribution of food and deprive people of clean water and sewage facilities. Within days populations begin to starve and become prey to waterborne diseases like typhoid and dysentery.

Human efforts are feeble compared to the forces of nature which are poised all around to massacre us as soon as we let our highly organised but fragile defences slip. This felt like a slightly eccentric minority view till the spring of this year and the outbreak of COVID-19. Hopefully now everyone can agree with it.

Anyway, the usual diseases of war (typhoid, dysentery) were compounded by plague, still a common disease and one which ravaged specific areas. Beyond the bounds of the war, large parts of Italy were decimated by plague in the 17th century, but troops of dirty soldiers traipsing all across the Empire brought it too, and some areas of Germany were laid low. As a tiny example, Wilson describes the town of Ingelfingen where 241 people died in 1634, of whom precisely 7 died during its violent capture but 163 died of plague. 20 times as many.

Although, even here, Wilson is cautious and careful, making the good point that a large number of these people might have died anyway, because plague recurred at ten-year periods throughout Europe. How many died of illnesses they would have got anyway, and how many died because the privations of living in a warzone made them susceptible? Contemporary records are not sophisticated to let us calculate.

Summary

I found this a very hard book to read.

Long

Partly because it’s long, very long – very, very long – and very detailed, so it is easy to put down, then pick up again and have completely forgotten where you were and who Maximilian, Frederick or the Elector Georg are, or which precise part of Germany their armies are tramping over and where they’re headed and why.

Writing about war requires special skills

Eventually I came to realise that Wilson doesn’t write about war very well. Max Hastings or Anthony Beevor manage the brilliant trick of combining a full and clear explanation of the high-level reasons for a war and the strategic changes and developments which develop as a result, alongside brutal eye-witness accounts which convey the fury and horror of individual battles. They clearly signpost key moments, key personalities and key decisions so that they stand out amid the endless sequence of events.

Not enough signposting of key events

Reluctantly, I came to the conclusion that Wilson can do neither. On page after page I found myself lost or confused as I read that Georg marched East to take the three main towns of Upper Saxony while Tilly was heading West to join up with the forces of Wallenstein who had recently seized the imperial cities of x, y and z. There are literally hundreds and hundreds of pages made up of prose like this.

The truce allowed Oxenstierna to move Lennart Tortensson and 9,700 men from Prussia. These troops began arriving in Pomerania in late October 1635 along with a morale-boosting delivery of new clothes for Banér’s ragged army. Tortennson’s units surprised Marazzino, prompting Johann Georg to fall back to protect Berlin in December, while Banér retook Werben and relieved Magdeburg in January 1636. The unpaid, hungry Saxons retreated to Halle. (p.578)

Maybe I’m dim, but by the end of this sentence I was thoroughly confused, and there are hundreds and hundreds of pages just like it.

Ferdinand regarded the third army of the Guelphs as already lost. He formally enfeoffed the elector of Cologne with Hildesheim on 22 August, and authorised Hatzfeldt to enforce this in October and compel the Guelph troops to join the imperial army. Piccolomini had already moved his 15,000 men from Luxembourg in September to assist. Duke Georg responded by tightening his mutual defence pact with Hessen-Kassel on 9 November, while Melander broke the Hessian truce to capture Bielenfeld. (p.617)

All these endless troop movements eventually blurred into one, and I lost any sense of why they were important, who their leaders were, and where any of these places were. At first I thought it was me, but eventually I concluded it is Wilson.

Suddenly out of the blue he’ll mention that all this marching has led up to one of the key battles of the war or marked some decisive turn — but there isn’t nearly enough scene-setting or signposting in the text. He doesn’t prepare us for the Big Events well enough, and then doesn’t bring out their consequences fully enough. I began to drown in the endless tide of detail.

When I did an apprenticeship in journalism, years ago, this was called ‘burying the lead’. If Something Big happens you make sure it is flagged up with a headline and a clear statement of the main event at the top of the copy. The headline and the opening sentence grab you and convey the key information.

The most glaring example of Wilson’s failure to think or write dramatically is the following. The Emperor Ferdinand II was the leading figure of the war from his accession in 1619. He is mentioned on every page, it is he who makes key decisions large and small, appoints generals, sets strategy and negotiates with other states and rulers. Ferdinand is the dominating figure of the narrative and the war. And yet his death only casually mentioned in parentheses on page 586.

Archduke Ferdinand was duly elected as King of the Romans on 22 December 1636 (just in time, because his father died a month after the congress closed).

That’s it, that’s all you get on the passing of this gigantic figure, and then the tide of details flows on as if nothing had happened. There is no build-up, no lead-up to this signal event – not even any explanation what Ferdinand died from, no mention of a funeral, no summary of what he had achieved during his reign. It’s a quite astonishing dereliction of the historian’s responsibility to explain.

Same happens with two other massive figures, Cardinal Richelieu of France and the French King Louis XIII, whose deaths in 1642 are briefly mentioned in the same sentence before the text moves briskly on with no mention anywhere of their importance, what their goals were and whether they achieved them, their responsibility in the war. Nothing.

It is a staggeringly cavalier attitude, and a prime example of the way Wilson is not writing history in a way designed to engage you with individuals and personalities, to make the story exciting or gripping, but with other aims in mind.

Wilson’s revisionist intentions

Part of the reason for this lack of good storytelling is that Wilson is more of an academic writer than Hastings or Beevor. You feel he is not setting down the welter of details in order to tell a good story, but because Wilson wants to make academic points. You begin to realise his primary motivation is overturning ‘traditional interpretations and asserting his revisionist account.

And you begin to recognise the moments when he does this as they all follow a similar template or formula – he writes that so-and-so event is usually interpreted as meaning x, but that he is going to reinterprets it as meaning y.

The general conclusion is that Wallenstein represented the last of the condottiere, or great mercenary captains who emerged in the Italian Renaissance. Such figures are thought to represent a transition in historical development as expedients employed by states until governments were capable of organising armies themselves. This is misleading. (p.542)

Or:

The war is customarily portrayed as entering its most destructive and meaningless phase after 1640, as it allegedly descended into ‘universal, anarchic and self-perpetuating violence.’ The development is often attributed to the deaths of the ‘great captains’ like Gustavus, Wallenstein and Bernhard, and is associated with the supposed internationalisation of the war… Much of this is a myth. (p.622)

In other words, for Wilson the text doesn’t exist as a dramatic story studded with key moments which represent massive historical and cultural turning points (like the Czech defeat at the Battle of the White Mountain or the death in battle of Gustavus Adolphus or the murder of the legendary Imperial general Wallenstein). These highly dramatic moments are almost peripheral to his real concern which is to take on the received ideas and interpretations of previous historians and to give key moments his own interpretation.

Thus in chapter 21, towards the end of the book, Wilson goes to great lengths to proves that, far from leaving the Empire a ‘hollow shell’, as many, especially 19th century critics of the treaty claimed, it in fact rejuvenated the Empire,

injected new life into its constitution and strengthened its political culture. (p.778)

But there’s another problem with this approach, beyond making the book lack narrative drive and consistently failing to signpost key moments so that the book ends up feeling like one damned thing after another for 850 pages of dense and detailed text.

This problem is that, to really get the most out of his new takes on old issues – to really understand how Wilson is upending traditional interpretations and giving new readings and slants on well-known events, people or policies – you have to know what the traditional interpretations are.

You have to have a good grasp on how historians have traditionally interpreted, say, Wallenstein’s character or Gustavus Adolphus’s motives, in order to really appreciate how Wilson is giving them a new interpretation, but the feeling that this would help your understanding of what Wilson is trying to do adds to the levels of complexity and slight anxiety I experienced reading his book.

This is, quite simply, asking too much of the average reader – that they should have a detailed enough knowledge of the traditional picture of the Thirty Years War in order to appreciate Wilson’s innovations and new readings.

Wilson’s interest in the finances of the war

Just a mention that Wilson’s book is very, very thorough about the financial aspects of the war. He devotes a great deal of space to the ongoing financial tribulations of the Emperor, and the kings of Spain, France, Denmark and Sweden. He explains how they all had to borrow to finance the war, and then were reduced to various extreme expedients, raising taxes, extorting money from conquered territories, looting gold and silver, squeezing Jewish financiers, a whole range of desperate measures, to pay the money back, and often never did.

Towards the end of the book he has a fascinating passage about the so-called ‘Kipper and Wipper’ hyperinflation which afflicted the Empire as states debased their currencies to pay for the exorbitant costs of war, which itself mostly meant paying the wages of the huge numbers of mercenary troops employed by both sides (pp.795-798).

Included in this theme is the fascinating fact, which I knew from other sources but still blows my mind, that although Spain was extracting huge amounts of silver from its mines in the New World (working to death slave labour populations of local Indians and then importing African slaves to carry out the work) it still managed to go bankrupt repeatedly throughout the later 16th and most of the 17th century. Basically, the Spanish Empire wasted all that treasure and more, on its stupid, futile wars, chief of which was trying to suppress the Protestant Dutch for 80 years. An epic example of historic futility.

Back with Wilson’s focus on finances, his summary of the Westphalia settlement includes a detailed consideration of the demobilisation of the troops of all sides stationed in garrisons, castles and cities all over the empire, and the cost of demobilisation. Peace treaties of the time usually included a so-called ‘satisfaction’ money i.e. money given by the loser to the victor to pay off his armies. Earlier in the book, Wilson explained the fascinating fact that it was often difficult to end local conflicts and even entire wars, because armies refused to be demobilised until they were paid.

This book contains an astonishing amount of information and shows an encyclopedic knowledge of the myriad of issues and subjects involved in the history of the period.

Lack of maps

Finally, it is a scandal that an 850-page-long book about the most complicated conflict in European history has precisely one map. And quite early on I realised that many places mentioned in the text aren’t even on it. This made it difficult-to-impossible to understand page after page after page of the text which describes this army marching from x to y via the river z, and meeting up with the army of p near the town of m not far from the lake of c — if none of these places are indicated on the book’s one and only map.

Of course, you can try googling all these placenames and, sure enough, find the places on Google Maps (although sometimes the names have changed and it takes a while of checking and double checking to be sure you’ve got the right one). But of course Google Maps doesn’t show the way the territory looked in the 17th century, nor does it show you the route of the complicated army manoeuvres you’ve just read about, or where the armies camped or set up and fought, or anything that you really need to see in order to understand the text.

The complete impossibility of establishing where half the things Wilson was describing were taking place was another big reason why the text eventually became a blur of similar-sounding names and places which became impossible to keep track of.

Conclusion

This book is an awe-inspiring achievement. To have reviewed so much material, to have consulted so many sources, in so many languages, in so many libraries, and to have mastered the early modern history of almost all European countries, and not least the terrifying complexity of the Holy Roman Empire and the complex web of power structures whose failure helped to trigger the war – and then to set it all down into an enormous, lucid, calm, reasonable, well-judged and balanced account like this is an awesome, almost a supernatural achievement.

Nonetheless, my conclusion would be that you should only consider reading this book if you want a really, really, really detailed account of the minutiae of the Thirty Years War, complete with academic reassessments of received historical opinions, and stripped of almost all excitement, drama and interest.

For most normal people, reading the Wikipedia article about the war (and all the related conflicts and key figures) will be more than they’ll ever need to know.

Video

Here’s a video of Peter H. Wilson himself delivering a lecture about the war. The main thing that comes over in this lecture which isn’t obvious from his book, is his simple explanation of why the war lasted so long, which is that both the Dutch and the French wanted to prevent it ending, for if it ended, the Austrian Habsburgs would be in a position to fully support their Spanish cousins to finally defeat the Dutch rebels.

Obviously the Dutch didn’t want this to happen, but neither did the French who were worried about being surrounded by Habsburgs to the south, east and north – and so first the Dutch and then, increasingly, the French, subsidised first the Danish intervention, and then the longer-lasting Swedish invasion of the empire, and then finally, the French themselves became directly involved in the war in 1635.

Appendix. Where does the word ‘Protestant’ come from?

A ‘diet’ or imperial conference was convened at the city of Speyer, in Germany in 1529. Its aims were:

1. organising the German states to deal with renewed Ottoman Turkish attacks in Hungary
2. to settle the religious question

The Holy Roman Emperor Charles V, himself a devout Catholic, was prepared to take a conciliatory approach to the Empire’s princes and dukes who had converted to the new ‘reformed’ religion of Martin Luther. But the diet was managed by his brother Ferdinand who took a harsher, non-negotiable line. He condemned all those princes who had interpreted a previous diet held at Speyer just three years earlier as allowing them to choose what religion was practiced in their states. No, they couldn’t, Ferdinand said. On the contrary, Ferdinand ordered that all states within the Empire must follow Catholicism, that all church reforms must be scrapped, and that any further reform was punishable by death. The Lutherans’ lives were to be spared, but more radical reformers like Zwinglians and Anabaptists were simply to be executed out of hand. Ferdinand and the Catholic rulers present – the majority – voted for these proposals.

The Lutheran members of the Diet (namely the rulers of Saxony, Brandenburg, Braunschweig-Luneburg, Hesse, Anhalt and the representatives of fourteen imperial cities) entered a formal protest against the decision and appealed to the Emperor Charles V (who had not attended the diet) to reverse its dictates.

Their protest against the harsh results of the second Diet of Speyer led to them becoming known as the protestors or the Protestants and the name became attached to all followers of reformed religion, whatever their precise theology or practice.

Related reviews

• The Thirty Years War by S.H. Steinberg (1966)
• Seventeenth century reviews