Duke of Antin

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.

...
Wikipedia