Antoine II of Gramont-Touloujon

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, he was automatically a Peer. 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. His mother had been royal mistress of King Henri III of Navarre between 1582 and 1591.