Jean IV de Bueil
He was a friend and counsellor of Louis I of Anjou. He was made general lieutenant of Guyenne, and Maître des arbalétriers (commander of crossbow archers) of the French army in 1395. He married Margarete Dauphine of Auvergne, youngest daughter of Berald II in 1404. He was the father of Jean V de Bueil, count of Sancerre and admiral of France, and of Anne de Bueil, wife of Pierre d'Amboise. Jean IV was killed at the Battle of Agincourt.