In 2011, the esteemed Margaux winery Château Cantenac Brown introduced their first white wine. Called AltO de Cantenac Brown, the wine is a blend of Sauvignon Blanc (90%) and Semillon grown in a cool vineyard with clay and calcareous soil. This displays the racy aromatics of a Sancerre Blanc, with a touch of Bordeaux opulence thanks to 100% fermentation and aging in one-year-old barrels.