Clos du Marquis sits in Saint-Julien, the heart of Médoc's Left Bank, where gravelly soils and a maritime climate shape wines of structure and refinement. The winery's flagship Saint-Julien blends Cabernet Sauvignon, Cabernet Franc, Merlot, and Petit Verdot into a wine that reflects the appellation's signature balance of power and elegance. La Petite Marquise Saint-Julien, a secondary expression built on Merlot, Cabernet Sauvignon, and Cabernet Franc, offers a more approachable entry point to the estate's style. Both wines have drawn assessment from major critics including Wine Advocate, Wine Spectator, Decanter, and Wine Enthusiast. The terroir of Saint-Julien—its well-drained plateau and cool growing season—favors the dark-skinned varieties that define Left Bank Bordeaux, and Clos du Marquis channels that character into wines built for aging.