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.

This château produces full-bodied, rounded wines that reveal fruity flavours and aromas of black fruit, mocha and liquorice. The wines are aged for 18 months before being bottled. A nephew of the famous German composer Mendelssohn was the owner of this beautiful vineyard at the outbreak of the First World War. The French government confiscated the property and sold it at auction. It was bought by a textile entrepreneur who, following the crisis in 1929, was obliged to sell it again, but divided the property into several parts. The buildings in Margaux were sold as one lot, and the vineyard was split into two. The name disappeared. It was not until 1981 that Lucien Lurton, having patiently reassembled the pieces of the puzzle and acquired beautiful premises in Cantenac, decided to relaunch Desmirail. As at his other properties, he installed stainless steel vats and a barrel cellar. The second wine is sold under the Château de Fontarney label.