The ecelesiastics who served the crypt of St. Martial organized themselves into a monastery in 848, and built a church beside that of St.-Pierre-du-Sépulchre which overhung the crypt. This new church, which they called St-Sauveur, was demolished in 1021 and replaced in 1028 by a larger edifice in Auvergnat style. Urban II came in person to reconsecrate it in 1095. In the 13th century the chapel of St. Benedict arose beside the old church of St-Pierre-du-Sépulchre. It was also called the church of the Grand Confraternity of St. Martial. The different organizations which were grouped around it, anticipated and solved many important sociological questions.