Later in the Middle Ages, the relics of Saint Maurus became very famous as they were supposed to heal gout and epilepsy, and "Saint Pierre des Fossés" became one of the most famous pilgrimage centers of medieval France. The rededication to Saint Maurus, in which abbey was renamed Saint-Maur-des-Fossés ("Saint Maurus of the Moats"), was justified by the story that during a drought in 1137, prayers to the Virgin and Saints Peter and Paul having been ineffective, prayer to Saint Maur brought the needed rainfall.