Paton was a foundling who was encouraged to paint by his protector, Admiral Sir Charles Knowles. This is one of a pair of paintings (RCIN 406728 and 406654) executed in c. 1770 in which he celebrates the admiral's exploits. This engagement took place on 8 March 1748 when Knowles in the 'Canterbury' destroyed the fortifications of Saint Louis in Hispaniola after a three hour cannonade. Port Louis's stone fortifications, with canon fire, are seen in the centre middle distance with mountains beyond; seven British two deckers are attacking the fort, ranged along the scene and, on the left, a Spanish fire ship is being towed clear. Inscribed 'Fort St, Louis 8 March 1747/8'