Jacques Nompar de Caumont, Duke o La Force (30 December 1558 – 10 Mey 1652) wis a french nobleman, he wis created a Marshal o Fraunce bi Keeng Louis XIII. He wis also the grandfaither o the Duke o Lauzun. He wis known as the Maréchal de La Force. He would be a grandfaither o the Duke o Lauun (secret husband o La Grande Mademoiselle, cousin o Louis XIV)