It was established as a result of the marriage in 1645 between Henri Chabot and Marguerite de Rohan, the sole heir of the Duchy of Rohan.The Rohan-Chabot family was founded by Henri Chabot (1616–1655), Lord of Saint-Aulaye (son of Henriette de Lur and her husband Charles Chabot, Lord of Saint-Gelais, Saint-Aulaye, a younger son of the Jarnac family), who married in 1645 Marguerite de Rohan (1617–1684), only child and heir of Henry II of Rohan, first Duke of Rohan (1603).[1][2] Following his marriage, Henri Chabot was created Duke of Rohan and Peer of France in 1648 by Cardinal Mazarin, during the reign of King Louis XIV.[1] Quartered: 1 and 4 gules, nine mascles or put 3, 3, 3 (which is Rohan); 2 and 3 or, three chabots gules put in pale (which is Chabot).[1] The house of Rohan-Chabot received the following titles:[1] The heir of the title Duke of Rohan traditionally bears the title Prince of Léon in his father's lifetime[1] (courtesy title adopted in the 16th century by the Rohan family, who owned the Lordship of Léon, which was only called a viscounty in the Middle-Ages[4]).