French military figure and member of the Gramont family. He was the oldest child of Antoine Charles IV de Gramont and Marie Charlotte de Castelnau. At the age of thirteen, he became a musketeer and by 1687 he had become head of his regiment and had married the daughter of Anne-Jules, 2nd duc de Noailles. He participated in the Siege of Philippsburg (1688) and the Battle of Landen (1693). He was made brigadier in 1694 and served in Flanders.