 Despite Nelson 's fondness for the ship , she was frequently in need of repair and refitting , and would likely have been hulked or scrapped in 1802 had war with France not recommenced . She fought at the Battle of Trafalgar on 21 October 1805 , as part of Nelson 's weather column , where she forced the surrender of the Spanish four @-@ decker Santísima Trinidad . Agamemnon 's later career was served in South American waters off Brazil . 
