Chateau Branaire Ducru, a Fourth Growth estate which was once part of neighboring Chateau Beychevelle, is located on the lofty St. Julien-Beychevelle plateau in southern St. Julien. 50 hectares of vines surround the chateau, rooted deep into the alluvial gravel soil. The vineyards are planted to 70% Cabernet Sauvignon, 22% Merlot, 4% Cabernet Franc and 4% Petit Verdot.

Wines from Château Branaire Ducru are densely packed and rather powerful, typically showing complex aromas and flavors of dark berries, exotic cocoa powder, smoky oak and mint. The chateau also produces a second label wine called Château Duluc. The production of both the eponymous Grand Vin and Chateau Duluc are overseen by Patrick Maroteaux, who purchased the estate in 1988.