On 28 March 1745 the 45 gun HMS Anglesea sailed out of Kinsale under the command of Captain Jacob Elton. Anglesea was ordered to join other warships in the English Channel and patrol for French shipping. On the afternoon of 29 March a large sail was spotted windward (upwind) of Anglesea, with the unknown vessel heading in the direction of the British warship. Captain Elton believed the ship to be the 60 gun HMS Augusta, and took no action in response to the sail. The vessel was in fact the French 50 gun ship of the line Apollon, which had detected Anglesea and made ready for an engagement.
When it was discovered that the approaching ship flew French colors, Captain Elton ordered Anglesea's mainsail raised in preparation for a flight. The effect of this action was to blow the ship to one side and flood the lower gun decks of the vessel. Apollon laid down a withering fire onto Anglesea, with the first broadside killing both Captain Elton and the ship's master, leaving Second Lieutenant Baker Phillips in command. Apollon's position granted it the advantage in maneuverability, and soon the British warship was crippled by repeated broadsides. Several more minutes saw Anglesea lose 60 men killed or wounded by French fire. Seeing no other option, Phillips surrendered the vessel, an action for which he would later be executed.
Following her capture, the vessel was commissioned into the French Navy as L'Anglesea. She remained in French service for eight years, and was decommissioned in 1753.