Lord Nelson, full name Horatio Nelson, was a British naval commander known for his leadership during the Napoleonic Wars. Born on September 29, 1758, he became famous for his innovative tactics and bravery in battles, particularly at the Battle of Trafalgar in 1805, where he secured British naval dominance. Nelson's career was marked by several significant victories, but he also faced personal challenges, including injuries that led to the loss of his right arm and sight in one eye. He died in battle on October 21, 1805, and is remembered as one of Britain's greatest naval heroes.