Antoine de Gramont, 1st Duke of Gramont (1572–1644) was a member of minor French nobility by birth. Created the 1st Duke of Gramont in 1643 by King Louis XIV,Jean de Jaurgain and Raymond Ritter, "La maison de Gramont 1040-1967", Les amis du Musée Pyrénéen, Aturbe (Two volumes) he was automatically a Peer.Jean de Jaurgain and Raymond Ritter, "La maison de Gramont 1040-1967", Les amis du Musée Pyrénéen, Aturbe (Two volumes) His granddaughter Catherine Charlotte de Gramont married Louis I, Prince of Monaco, making Antoine a direct ancestor of the present reigning Albert II of Monaco. Though created the 1st Duke of Gramont, the creation of the title was not officially registered in Parliament before his death, so his son had to petition for the dukedom to be recognised.Ritter, Raymond (1959). Une dame de chevalerie, Corisande d'Andoins, comtesse de Guiche. Albin Michel. His mother had been royal mistress of King Henri III of Navarre (the future Henri IV of France) between 1582 and 1591.
First marriage He married Louise de Roquelaure, daughter of Antoine de Roquelaure
Antoine and Louise had two sons: Antoine (1604–1678), numbered Antoine III, who became the 2nd duc de Gramont Roger (died 1629), who was known as comte de Louvigny
Second marriage In 1618, he married Claude de Montmorency of the House of Montmorency.
Antoine and Claude had two sons: Henri (died 1679), Count of Toulongeon Philibert (1621-1707), courtier
—and four daughters Susanne-Charlotte (1627–1688), married Henri Mitte, Marquis of Saint-Chamond Anne-Louise (died 1666), married Isaac de Pas, Marquis of Feuquière Françoise-Marguerite, married Philippe, Marquis of Lons Charlotte-Catherine (died 1714), became abbess of Notre-Dame-du-Ronceray at Angers.
Arms
Écartelé, au I et IV, de gueules à trois fasce ondées d'or; aux Iet III, cousu de gueules à trois jumelles d'argent; sur-le-tout, contre-écartelé : au 1, d'or, au lion d'azur, armé et lampassé de gueules (Gramont); au 2, de gueules, à trois flèches d'or, armées et empennées d'argent, 2 et 1, les pointes en bas (Asté); au 3, d'or, à un lévrier de gueules, colleté d'azur, à l'orle de sable, semée de besants d'or (Aure); au 4, d'argent à un chef endenté d'azur.Armorial du duc de Gramont
References
Sources – GAR to GUE