He was the son of Marshal of France, Jacques-Nompar de Caumont, duc de La Force and Charlotte de Gontaut, daughter of Marshal Armand de Gontaut, baron de Biron.
He is the offspring of Marshal Jacques-Nompar de Caumont, Duke of La Force and Charlotte de Gontaut, who is the daughter of Marshal Armand de Gontaut, Baron of Biron.