A Bordeaux Chateau is a wine estate located in the Bordeaux region of France. The term "chateau" often refers to a castle or mansion, but in the context of Bordeaux wine, it refers to a winery. Many prestigious Bordeaux wines are produced in chateaux, which typically have vineyards and winemaking facilities on site. The chateau often serves as a physical representation of the wine estate and can help distinguish the wine from others in the market. Some of the most well-known Bordeaux chateaux include Chateau Margaux, Chateau Latour, Chateau Lafite Rothschild, and Chateau Mouton Rothschild.