A young, century-old brand, Castelnau, is the main brand of the Regional Wines of Champagne Cooperative, based in Reims, which brings together 700 associate winegrowers. With a wealth of supply from 144 vintages spread over 800 hectares, this House is one of the largest vineyards and the best terroirs of Champagne. It largely contributes to the influence of the culture and the economy of Champagne and encourages people to explore and promote all of Champagne.