Château Cos d’Estournel was one of the estates inherited by Louis Gaspard d'Estournel in 1791 in the commune of Saint-Estèphe, in the Médoc subregion.
The great potential of the terroir on the hill where the estate is located (in fact, "cos" means "hill of pebbles" in Gascon) led d’Estournel to quickly expand its boundaries to reach 45 hectares of vineyards. His tireless drive took Château Cos d’Estournel beyond the borders, not only of Bordeaux but also of France. Specifically, the wine was exported to India in 1838, and such was the passion that this culture ignited in the winemaker that he reflected its influence in the architecture of the château, an exotic hallmark that has endured to this day.
The pursuit of the highest quality was one of d’Estournel's obsessions, and it bore fruit two years after his death with the achievement of the rank of Second Grand Cru Classé de Bordeaux in the historic classification of 1855.
Today, entrepreneur Michel Reybier continues the legacy of Château Cos d’Estournel's founder. Since acquiring the estate in 2000, captivated by its history and originality, the winery has once again followed the path of excellence set by d’Estournel, built on tradition and innovation.
Currently, the estate encompasses 100 hectares of vineyards spread across a mosaic of plots located in the heart of a hilly area in the northern Médoc. This fantastic terroir, which combines varied soil compositions—from a gravel plateau in the central part to clay-limestone soils in the eastern area—with different exposures to the south and east, constitutes Cos d’Estournel's main asset. This unique richness has placed the wines made from these vines, predominantly cabernet sauvignon, merlot, cabernet franc, and petit verdot, among the most famous in the world.