Nelson, Viscount Admiral Horatio British naval commander and national hero (1758-1805)British naval commander and national hero (1758 1805), Nelson was famed for his bold decisions and occasional disregard for his senior officers orders, resulting in significant victories against the French during the Napoleonic wars. His greatest battle was his last, at Cape Trafalgar, which saved Britain from threat of invasion by Napoleon. Before the battle on 21st October 1805, Nelson sent out the famous signal to his fleet 'England expects that