François de La Rochefoucauld, 8th Duke of La Rochefoucauld

François XIII de La Rochefoucauld, 8th Duke of La Rochefoucauld (8 September 1765 – 3 September 1848) was a French aristocrat and writer.

Early life De La Rochefoucauld was born on 8 September 1765 in Paris. was the heir and eldest son of François Alexandre Frédéric, duc de la Rochefoucauld-Liancourt and the former Félicité de Lannion. Among his siblings were Alexandre, comte de La Rochefoucauld, who married Adélaïde de Pyvart de Chastullé (a San Domingo heiress allied to the Beauharnais family), and Frédéric Gaëtan de La Rochefoucauld, Marquis of Liancourt. Among their children were:

François XIV de La Rochefoucauld (1794–1874), 9th Duke of La Rochefoucauld, who married Zénaide Chapt de Rastignac, a daughter of Pierre Jean Julie Chapt, Marquis of Rastignac (and granddaughter of Ambroise-Polycarpe de La Rochefoucauld), in 1817. Count Olivier de La Rochefoucauld (1797–1885), who married Rosine Cuillier-Perron, a daughter of Gen. Pierre Cuillier-Perron. After her death in 1852, he married Augustine Euphrosine Montgomery, a daughter of William W. Montgomery. Countess Sophie Francoise de La Rochefoucauld (1799–1877), who married Armand, Marquis de Castelbajac. Count Charles Frédéric de La Rochefoucauld (1802–1895), who married Anne Charlotte Cuillier-Perron, also a daughter of Gen. Pierre Cuillier-Perron.

Descendants Through his son François, he was a grandfather of François XV de La Rochefoucauld (1818–1879), 10th Duke of La Rochefoucauld, and Alfred de La Rochefoucauld, 1st Duke of La Roche-Guyon (through whom he is ancestor of the La Roche-Guyon cadet branch of the family La Rochefoucauld).