Alexandre de La Rochefoucauld, 5th Duke of La Rochefoucauld (29 September 1690 - 4 March 1762) Due his children being daughters hisdukedom was inherited by his cousin Louis Alexandre de La Rochefoucauld due to salic law
Marriage
On 30 July 1715, Élisabeth Bermond du Caylard (20 December 1691 - 30 September 1752), only child of Jacques François de Bermond du Caylard, Marquis of Toiras, and Françoise Louise de Bérard, Marquise of Vestric.
Children
Marie-Louise Nicole Élisabeth de La Rochefoucauld, Dame of La Roche-Guyon (Paris, 22 septembre 1716 - Paris, 31 May 1797) married Guy de La Rochefoucauld, duc de La Roche-Guyon then Jean-Baptiste de La Rochefoucauld de Roye, duc d'Anville. François de La Rochefoucauld (31 December 1717 - September 1718) Marie de La Rochefoucauld, Dame of Liancourt (December 1718 - September 1789), married Louis François Armand de La Rochefoucauld de Roye. François de La Rochefoucauld (21 October 1720 - 19 April 1721) Adélaïde de La Rochefoucauld (21 January 1722 - 9 August 1737