Charles Pierre François Augereau, 1st Duc de Castiglione (21 October 1757 – 12 June 1816) was a soldier and general and Marshal of France. After serving in the French Revolutionary Wars he earned rapid promotion while fighting against Spain and soon found himself a division commander under Napoleon Bonaparte in Italy. He fought in all of Bonaparte's battles of 1796 with great distinction. During the Napoleonic Wars, Emperor Napoleon entrusted him with important commands.