Château Kirwan is an 86-acre, Third Growth estate in Margaux. The estate traces its history to the 18th century, when John Collingwood, an Englishman, set up one of the region’s first negociants. An Irish merchant named Mark Kirwan married into the family and ended up inheriting the estate. The estate is today owned by the Schyler family. Its vineyards are planted to 40% Cabernet Sauvignon, 30% Merlot, 20% Cabernet Franc and 10% Petit Verdot. Around 100,000 bottles are produced annually. The second wine is Les Charmes de Kirwan.