The term 'Hero of Trafalgar' refers to Admiral Horatio NELSON, a British naval commander who was instrumental in the victory of the Battle of Trafalgar in 1805. He is remembered for his bravery and leadership during the battle, which resulted in a decisive victory for the British against the combined forces of France and Spain. NELSON was killed during the battle, but his legacy lives on as a symbol of British naval power and heroism.