In 1862 Victor Beylot created the "Château Couperie" in Saint-Émilion. Purchased in 1955 by the aircraft manufacturer Marcel Dassault as a "communication tool" and a subsidiary of the Dassault Group, close to the Dassault sites in Mérignac and Martignas-sur-jalle, he renamed the Château after him. In 1969 Château Dassault obtained the Saint-Emilion Grand Cru Classé classification.

Château Grand-Puy-Lacoste produce some of the best value wines in the Pauillac region, if not simply some of the best quality in general. Cabernet based reds are their staple and generally produce wines of a robust and masculine nature. In recent years the wines are close to rivalling the famed Pichons .