Appointed bishop in 1612, he resigned in 1652. He was knighted on December 31, 1661 and created duke of Verneuil in 1663. In 1665 he became ambassador to England and in 1666 was made governor of Languedoc. He married Charlotte, daughter of the chancellor Pierre Séguier and widow of Maximilien de Bethune, Duke of Sully, on October 29, 1668. He died without issue on May 28, 1682 at Château de Verneuil.