| Conflict: | Battle of Cartagena (1711) |
| Partof: | the War of the Spanish Succession |
| Date: | 11 August 1711 |
| Place: | Boca Chica Channel, off Cartagena de Indias (Present day Colombia) |
| Result: | British victory |
| Commander1: | James Littleton |
| Combatant2: |  Spain |
| Commander2: | Don Miguel de Villanueva |
| Strength1: | 5 ships |
| Strength2: | 2 ships |
| Casualties2: | 2 ships captured, 150 casualties 450 captured |
| Casualties1: | 7 casualties |
The capture of the galleon San Joaquin or the battle of Cartagena was a naval engagement that took place off the coast near Cartagena (present day Colombia). It involved five British ships of the line against the Spanish galleon San Joaquin and a smaller ship. After an action lasting barely an hour the Spanish ship surrendered. The galleon had fought in the previous encounter during Wager's Action nearly three years earlier but had just barely escaped capture.
In late May 1711, the warships under the command of Jean du Casse arrived, and so on 3 August 1711 they sailed from Cartagena which now composed of the Treasure Fleet which was to return to Spain. The units of escort composed of the following: San Joaquin of 64 guns under Admiral Miguel Agustin Villanueva, Saint-Michel of 70 guns under Jean du Casse, Hercule of 60 guns under Captain Proglie and the frigate Griffon of 44 guns under Captain Turroble.[1]
Meanwhile, Commodore James Littleton arrived with a number of ships which had sailed from Port Royal in Jamaica on 26 July: a fleet which consisted of of 50 guns under Captain Francis Hosier and Littleton's flagship, Salisbury Prize of 50 guns under Captain Sir Robert Harland, of 60 guns under Captain Edward Vernon, of 50 guns under Captain Sampson Bourne, 50 guns, under Captain Richard Lestock, 50 under Captain Thomas Legge, frigate Fowey of 40 guns under Captain Robert Chadwick.
Du Casse had left the frigate Gallarde in Cartagena for its defense and so on the day of leaving, the fleet were soon spotted by Littleton's fleet but a storm prevented any action, and both fleets dispersed. Most of the fleet, including du Casse, returned to Cartagena without giving any advice to Admiral Villanueva. On 7 August the galleon San Joaquin was separated along with a smaller vessel and a squadron was sighted. Villaneuva thought the vessels were that of du Casse, but it was the English squadron of Littleton.[2]
When Villanueva realized his error, it was too late to flee, and he decided to take on Littleton's squadron. The ensuing engagement lasted less than 20 minutes. San Joaquin was dismasted and suffered many casualties. Villaneuva, surrounded by the overwhelming British squadron, was mortally wounded when hit by a musket shot and soon struck his flag. Littleton, went on board from Salisbury and took the surrender. Vernon in Jersey captured the smaller vessel, which was attempting to escape.
The galleon's prize money was shared amongst the captains and the British sailed back to Port Royal. By order of King Philip V, the treasure was transferred to the French ships. Three days after the battle, du Casse, knowing that San Joaquin was lost, left Cartagena and sent his forces first towards Martinique, then to Pensacola, and finally to Spain where they reached safely.[3]