It is believed that during the 18th century the Gazin estate was the site of a hospital, built by knights to receive pilgrims – giving rise to the second wine name, L’Hospitalet de Gazin. Since the early 20th century Chateau Gazin has been in the Bailliencourt family, and although there was some variation in quality in the latter half of the 1900s, the current, fifth generation has been producing increasingly fine wines since the excellent 2001 vintage.
Chateau Gazin's vineyard covers an area of 26 hectares, in a single holding, on the upper terrace of the Pomerol terroir. The vineyard is planted with 90% Merlot, 7% Cabernet Sauvignon and 3% Cabernet Franc.
The vines are cultivated using traditional growing methods and an environmentally-friendly approach with ploughing, organic fertilizers, minimum use of pesticides (including mating disruption), and manual harvests.