 The enormous and powerful monastery at Cluny was to have lasting effect on the layout of other monasteries and the design of their churches.Unfortunately, very little of the abbey church at Cluny remains; the "Cluny II" rebuilding of 963 onwards has completely vanished, but we have a good idea of the design of "Cluny III" from 1088 to 1130, which until the Renaissance remained the largest building in Europe.However, the church of St. Sernin at Toulouse, 1080–1120, has remained intact and demonstrates the regularity of Romanesque design with its modular form, its massive appearance and the repetition of the simple arched window motif.