The remaining five monks left Villemagne in 1793. After the French Revolution the churches were devastated and plundered and the surviving papers, charters etc. were destroyed by fire in the town square which explains the complete lack of historical archives. The ecclesiastical buildings were sold off by auction, including the abbey and its dependences, which were split between several new proprietors; the abbey church of St Majan, was transformed into a glass factory by the glassworker Giral, (who used coal from Graissessac to feed his furnaces). The then parish church St Grégoire was abandoned and after several years of neglect, its roof collapsed.