HMS Euryalus (1803)
HMS Euryalus, launched 1803, was a frigate of the Royal Navy. Captained by Henry Blackwood, she led the squadron of frigates watching Cádiz prior to the Battle of Trafalgar, though she was too small to take part in the battle itself.
After the death of Horatio Nelson, she became Cuthbert Collingwood's flagship.