Clairvaux Abbey (Clara Vallis in Latin), a Cistercian monastery, was founed in 1115 by St. Bernard. It is located in Ville-sous-la-Ferté, 15 km away from Bar-sur-Aube, in the Aube département in northeastern France. Although the original building is now in ruins--and a high-security prison now occupies the grounds (see Clairvaux Prison)--Clairvaux Abbey was a good example of the general layout of a Cistercian monastery.