Original: Vice Admiral Horatio Nelson , 1st Viscount Nelson , 1st Duke of Bronté , KB ( 29 September 1758 -- 21 October 1805 ) was an English flag officer famous for his service in the Royal Navy , particularly during the Napoleonic Wars .
Simplified: Vice-Admiral Horatio Nelson ( 29 September 1758 -- 21 October 1805 ) was an English sea captain in the Royal Navy .