11th April 1809. The Battle of the Basque Roads.

The Battle of the Basque Roads, also Battle of Aix Roads (French:Bataille de l'île d'Aix, also Affaire des brûlots, rarely Bataille de la rade des Basques) was a naval battle during the Napoleonic Wars off the Island of Aix. On the night of 11 April 1809 Captain Lord Cochrane led a Britishfireship attack against a powerful squadron of French ships anchored in the Basque Roads. In the attack all but two of the French ships were driven ashore. The subsequent engagement lasted three days but failed to destroy the entire French fleet. 

Cochrane accused the British commanding officer, Admiral James Gambier, of being reluctant to press the attack. Gambier demanded a court-martial, and was duly exonerated; Cochrane's career in the Royal Navy ended. The French Navy continued to operate against the British from the Basque Roads until the end of the Napoleonic Wars.