 Fearing disunity in the Bourbon line, it became one of the estates confiscated by Constable de Bourbon, and was given by Francis I and Louise of Savoy to Antoine, Duke of Lorraine, and his wife, Renée of Bourbon, sister of the Constable.Nicolas of Lorraine, son of Duke Antoine, was created Duke of Mercœur and a peer of France in 1569.His son Philippe Emmanuel left a daughter, who married the duc de Vendôme in 1609.