In 1450, in order to pay off various debts, Louis II Chabot sold his domains of Montsoreau and Coutancière to his brother-in-law Jean II de Chambes, who undertook to rebuild the castle at Montsoreau. A descendant of Angoumois old noble family (near the city of Angoulême), Jean II de Chambes began in Charles VII service as an esquire in 1426, the years before the famous interview between the King and Jeanne d'Arc in the Castle of Chinon. Baker in chief, Councillor and Chamberlain, he became in 1444 "first master of ostel" of the King; at the same time he associated with Jacques Coeur. Jean II de Chambes received a considerable amount of money that was owed to him. He was trusted with several sensitive diplomatic missions and especially sent as ambassador to Venice in 1459 to prepare a new crusade. His lordships of Montsoreau and Argenton, but also his governorship of La Rochelle and Lord Provost and Captain of Niort, Talmont-sur-Gironde and Aigues-Mortes assured him some substantial revenues.