The Château Cos d’Estournel is one of the most famous vineyards of Bordeaux. Since the classification of 1855, the winery is classified as Deuxièmes Crus (Second Growths), in the second highest classification of the Bordeaux Wine Official Classification of 1855. The property is located in Saint-Estèphe in the south, close to the municipal boundary to Pauillac on the first hill.
The estate was founded by Louis-Gaspard d’Estournel (1762-1853). The word ‘Cos’ refers to ‘The Hill of Pebbles’. The Prats family sold Cos d’Estournel to The Tailan Group in 1998, but Jean-Guillaume Prats stays in control of vineyard.
Soil is limestone bed with top layers of gravel. Cos d’Estournel is commonly a blend of 60% Cabernet Sauvignon, 38% Merlot and 2% Cabernet Franc. The winery produces in normal years about 370,000 bottles of wine.Among the best incurred in Château wines to date includes the vintages 1990 and 1995. Only the wines made from vines over twenty years of age will carry Cos d’Estournel, Château produces a second wine called Les Pagodes de Cos, from vines aged less than twenty years.