Located in the Haut-Medoc on the left side of the Gironde, Chateau Lanessan is a 40 hectare estate with the classification of Cru Bourgeois Supererieur which many believe should be higher. Early documents show Dame Paironne la Montagne, the widow of Henry de Lanessan, sold the estate on January 15, 1310 to Sieur de Blaignan.
In 1855 when the Bordeaux classification was done Lanessan did not submit any wines in the belief it's reputation was sound enough. At the time they believed the Classification was bureaucratic nonsense
The current Chateau was built in 1878 in a mock-Tudor style and its cellars in the traditional Medoc style. The 40 hectares of vines are made up of Cabernet Sauvignon (60%), Merlot (30%), Cabernet Franc (5%) and Petite Verdot (5%) which produce an annual volume of around 220,000 bottles.
The Lanessan wines are robust, intensely flavoured, deep coloured, well-structured and slightly chewy in texture. They show no weakness and are characterised by rich, dark fruit/blackcurrent flavours. Robert Parker rates Lanessan highly and says the wine can be outstanding. He also believes a reclassification of the Medoc would see Lanessan elevated to fifth-growth status. The location of Lanessan is immediately south of the commune of St-Julien and opposite Gruaud Larose.