 In 1665 he became ambassador to England and in 1666 was made governor of Languedoc.He married Charlotte (1622-1704), daughter of the chancellor Pierre Séguier and widow of Maximilien François de Bethune, 2nd Duke of Sully (1614–1661), on 29 October 1668, when he was 67 and she 46.He died without issue on 28 May 1682 at Château de Verneuil.