The estate has been in the same family since time immemorial and has always been handed down by women. The current owner, Jean-Hubert Delon, inherited the estate from his paternal grandmother, Georgette Liquard. Although close to the river, Potensac is situated on a high point of land in North Medoc. Because of this position, the site has been populated since ancient times. The name "Medoc" in fact comes from "medio aquae" which means "in the middle of the waters"…Planted on the best quality soils in the Ordonnac district, the vineyards now extend over 60 hectares on a terroir where the typical characteristics of each grape variety express themselves very distinctly and give the wine superb ageing potential.

The estate's Grand Vin's vineyards are located west of Ordonnac village. Its rows of vines grow on a double thalweg of gravelly-clay. They produce a very fine wine with tight texture, great richness and wonderful freshness. On the palate, the wine is pure and powerful, the tannins dense and spicy, and the finish of great depth with glorious aromas. Because of these qualities, Château Potensac is often considered to represent the "pure Medoc style". It should be noted that Potensac was the only "Cru Bourgeois Exceptionnel" of its appellation.

The 2014 vintage began 15 days ahead of the ten year average due to a particularly mild and humid winter, and a fairly warm start to spring. Cooler temperatures subsequently, particuarly in May, caused this lead to be lost until the pre-flowering period. The start of flowering took place in humid conditions, but the good weather that followed accelerated and finishes flowering in excellent conditions.

In this very "growing" vintage the succession of two leaf strippings and de-stemmings ensured good porosity of the fruiting zone and thus contributed to maintaining an excellent health condition which allowed harvesting at the optimal date for all grape varieties.