The duchy of Antin was a French duchy created in 1711 by the promotion of the marquisate of Antin (held by the Pardaillan de Gondrin family) into a "duché-pairie". It merged the Marquisate of Antin and the baronies, lands and lordships of Bellisle, Mieslan, Tuilerie de Pis, Certias and their dependencies.
List of dukes of Antin
References
Duke of Antin Wikipedia(Text) CC BY-SA