born Nov. 10, 1693, Rochefort, France died Oct. 26, 1756, Montereau French naval officer. While serving in the French navy (1710-36), he made several supply trips to New France and held various commands in the Atlantic. As commandant general of New France (1747-49), he sought unsuccessfully to fortify a link along the Ohio River between French Canada and the Louisiana settlements and to establish French settlements in Detroit and the Illinois country. In 1754 he was given command of a naval squadron assigned to protect French shipping from the Barbary pirates