His daughter and heiress married firstly Sir Richard Acton, 7th Baronet (by whom she was the mother of John Dalberg-Acton, 1st Baron Acton) and secondly Granville George Leveson-Gower, 2nd Earl Granville, but as the Duke had no sons, the title became extinct.
Bar-le-Duc | Louis de Rouvroy, duc de Saint-Simon | John Dalberg-Acton, 1st Baron Acton | Charles de Sainte-Maure, duc de Montausier | Hugues-Bernard Maret, duc de Bassano | Eugène Viollet-le-Duc | Duc de La Rochefoucauld | Michel Duc-Goninaz | Karl Theodor Anton Maria von Dalberg | Étienne François, duc de Choiseul | Claude Victor-Perrin, Duc de Belluno | Philippe, duc d'Orléans | Le duc d'Albe | Jean, 2nd Duc d'Alençon | Duc d'Orléans | duc de Choiseul | Duc d'Anville Expedition | DUC | Duc | Aignay-le-Duc | Agenor, duc de Gramont | Richard Lyon-Dalberg-Acton, 4th Baron Acton | Pierre d'Alcantara Charles Marie, duc d'Arenberg | Philippe de France, ''duc d'Orléans'' | Louis' wife with the duc de Choiseul | Louis Philippe Joseph d'Orléans, duc d'Orléans, ''duc de Montpensier'' | Louis Philippe II d'Orléans, duc d'Orléans, ''duc de Montpensier'' | Louis, duc d'Orléans | Louis de Rouvroy, Duc de Saint-Simon | Louis d'Armagnac, duc de Nemours'', 19th century copy of an old portrait by Charles de Steuben |