Louis d'Armagnac, Duke of Nemours (1472; Normandy, France – 28 April 1503; Cerignola, Italy), was a French nobleman, politician and military commander who served as Viceroy of Naples from 1501-1503, during the Third Italian War. He was known for most of his life as the Count of Guise, and inherited the Duchy of Nemours following his brother Jean's death in 1500.[1]