The Abbaye de Maubuisson is a former Cistercian abbey located in the Val-d'Oise department of France. Founded in 1236 by Queen Blanche of Castile, it served as a religious community for nuns. The abbey is known for its beautiful Gothic architecture and serene surroundings, making it a significant historical site. Today, the abbey is a protected monument and hosts various cultural events and exhibitions. Its ruins and preserved structures attract visitors interested in history and architecture. The site reflects the rich heritage of the Cistercian order and the role of women in medieval religious life.