It existed from 1131 to 1793, being founded by monks from the abbey of Clairvaux, at the behest of Jocelin of Soissons. There is now a hotel on the site, located in the old Cistercian inn. The roofless abbey church can be visited, along with the better-preserved buildings around the cloister. The original buildings suffered war damage in 1918.
- Pickard, Charlotte (2015) "Unequal Marriage in Medieval France: The Case of the Vermandois Heiresses" DOI: 10.6084/m9.figshare.4286954.v1
- Poquet, Monographie de l'abbaye de Longpont (Paris: 1869)