Château Potensac has belonged to the Delon family for more than three centuries, with the particularity of being transmitted by women. Jean-Hubert Delon, the current owner, received it from his paternal grandmother, Georgette Liquard. The Delon family also owns the Léoville Las Cases, Clos du Marquis and Nénin châteaux in the region.
The Château Potensac vineyard is currently managed by Pierre Graffeuille, as are the other properties of the Delon family. He places his extreme standards at the service of this castle considered to be one of the best in the Médoc appellation.