 They had one daughter, Marthe du Casse, who married Louis de La Rochefoucauld, Marquis de Roye (1672-1751).Her father offered a dowry of 1,200,000 livres, an incredible sum at the time.Marthe and Louis had a son, Jean-Baptiste de La Rochefoucauld de Roye, who became a naval officer and led the ill-fated Duc d'Anville Expedition.