Champagne Ullens began in 2012, when the Belgian-born Maxime Ullens purchased Domaine de Marzilly, in the Massif de Saint-Thierry, Champagne’s northernmost region. He renovated the château and went to school to learn about producing Champagne. Maxime now farms 4 hectares of vineyard on his own land. All of the plots are vinified in oak barrels, and the barrels are made with trees from the local forest, by the Tonnellerie de Champagne of Cauroy-lès-Hermonville.