During the Napoleonic Wars, the French and Spanish Naval fleets combined forces. On 21 October 1805, the Royal Navy under the command of Vice-Admiral Horatio Nelson intercepted the enemy fleet off Cape Trafalgar, on the south-west coast of Spain. The allied fleet lost 22 of its 33 ships, while the smaller British fleet of 27 ships lost none. Nelson, shot at close range shortly after the battle began by a marksman in the rigging of Redoubtable, died a few hours later.

In the collection of Royal Museums Greenwich ID BHC0550
In the Royal Navy, and other navies, prize money was awarded for the capture of enemy ships and the destruction of enemy shipping or stores. When a prize was brought into port, the ship and its cargo, and guns were sold, and the proceeds, as determined by a prize court, divided among the crew according to rank. The captain received two-eighths (or 25%) and the commander-in-chief received one-eighth. Officers, warrant officers, and the crew then split the remaining five-eighths based on their rank, with senior officers getting larger portions of the smaller shares and the lowest-ranked crew members receiving a quarter share to be divided among them.
Although the British had achieved a resounding victory, many of the captured Franco-Spanish ships were destroyed in a fierce storm that followed the battle. To honour the Navy’s achievement, a grant of £300,000 grant was distributed among the crews of the ships that had taken part in the fighting.
The payments, recorded in ‘prize books’, reveal who had served on each ship and how the prize money and grant had been shared.
In addition to this special grant, individuals also received prize money from the sale of any captured ships that were salvaged.
At least four of my relatives served at Trafalgar and received a share of the grant and prize money.
- Augustus James Champion de Crespigny, aged 14 years, was a midshipman on the Spartiate, 74 guns
- During the battle Spartiate with Minotaur forced the surrender of the Spanish ship Neptuno, of 80 guns
- Prize money was awarded to the captain and company of the Spartiate for the capture of 4 French-Spanish ships captured that day together with proceeds of the Bounty Bills for ships destroyed: A “bounty bill” in the Royal Navy was a document detailing the distribution of prize money to officers and crew who captured enemy ships, vessels, or their cargo. The “bounty” was the payment, and the “bill” was the official authorization for its distribution, typically after a prize had been adjudicated as lawful in a court of admiralty.
- Midshipman Augustus Crespigny of the Spartiate received £26 6s 0d on 18 February 1807 as his share of the Trafalgar Parliamentary Grant and prize money of £10 14s 0d on 22 Oct 1807. (Worth about £50,000 today).

In the collection of Royal Museums Greenwich ID PAG9030
- Benjamin Mainwaring, 11 years old, was a volunteer 1st class (rated as A.B. able seaman) on the Temeraire, 98 guns
- During the battle Temeraire had closely engaged two French ships
- Able Seaman Benjamin Mainwaring of the Temeraire received £4 12s 6d on 5 January 1807 as his share of the Trafalgar Parliamentary Grant and £1 17s 6d as his share of the prize money. (Worth about £9,000 today).

In the collection of Royal Museums Greenwich ID PAD5705
- Thomas Francis Charles Mainwaring, 25 years old, was a lieutenant on the Naiad, a 36 gun frigate
- The Naiad was too small to take part in the battle. Instead, she lay to windward of the action. After the battle she destroyed the Monarca, a Spanish 3rd-rater and towed Belleisle, the only British ship to be dismasted during the battle, to Gibraltar.
- Lieutenant T F C Mainwaring of the Naiad received £161 0s 0d as his share of the Trafalgar Parliamentary Grant on 10 September 1806 and £65 11s 0d as his share of the prize money on 10 Apr 1807. (Worth about £300,000 today).

In the collection of the Royal Museums Greenwich ID: PAF5883
- James Bayly, 21 years old, was a midshipman on the Euryalus, a 36 gun frigate
- Euryalus was too small to play a major role in the battle and stood off until the late afternoon when she took the badly damaged Royal Sovereign in tow and turned her to engage the French ship Formidable.
Following the death of Admiral Nelson, Admiral Cuthbert Collingwood transferred his flag from Royal Sovereign to Euryalus which became the British fleet’s flagship for the next ten days.
After the battle Euryalus took on survivors from the French ship-of-the-line Achille, as well as the captured French Admiral Pierre de Villeneuve. Blackwood also received the surrender of the Spanish ship Santa Ana. - James Bailley, midshipman on the Euryalus received £26 6s on 10 September 1806 as his share of the Trafalgar Parliamentary Grant. He received £10 14s on 9 April 1807 as his share of the prize money. (Worth about £50,000 today).
- Euryalus was too small to play a major role in the battle and stood off until the late afternoon when she took the badly damaged Royal Sovereign in tow and turned her to engage the French ship Formidable.
Unlike the army, a naval officer could not purchase a commission. They had to start at the bottom of the officer hierarchy. Many, like Benjamin Mainwaring and Augustus Champion de Crespigny were aged between 11 and 14 years old; most officers joined no later than age 13. Even though they were on the lowest rungs of the Navy career ladder they were entitled to a share of prize money.
The Royal Navy tradition of prize money allowed men to acquire huge sums of money relatively quickly. Many men risked the perils of life at sea because of the chance of earning a fortune. The wars against France in the late eighteenth and early nineteenth century meant it was a particularly rich period for Royal Navy prize captures.
Related posts and further reading
- Trafalgar Day 21 October
- J is for jaundiced in Jamaica: the career and death of Augustus James Champion de Crespigny (1791-1825
- Jemmett Mainwaring and the start of a Mainwaring naval tradition – part 1: six Mainwaring cousins joined the Royal Navy in the late 1th and early 19th centuries
- Kelly, C. W. (2025, October 21). The real story of the Battle of Trafalgar. Findmypast.com.au. https://www.findmypast.com.au/blog/history/battle-of-trafalgar
- Knowles, A. (2023, April 20). How Captain Wentworth got rich on prize money. Regency History. https://www.regencyhistory.net/blog/regency-prize-money-how-captain-wentworth-got-rich
Wikitree:
- Augustus James Champion de Crespigny (1791 – 1825) 2nd cousin 5 times removed
- Benjamin Mainwaring (1794 – 1852) 2nd cousin 6 times removed
- Thomas Francis Charles Mainwaring (1780 – 1858) 2nd cousin 6 times removed
- James Bayley (1784 – 1857) 4th great grand uncle































