Located in Allemant, Champagne Delong Marlène is managed today by two young enthusiasts and nature lovers. The farm extends over 5 ha 30, in 3 villages of the Côteaux Sézannais: Allemant, Broyes and Sézanne. With care throughout the year, Marlène and Damien cultivate the grape varieties on vines with an average age of 40 years.