The fast-growing community at Cluny required buildings on a large scale. The examples at Cluny profoundly affected architectural practice in Western Europe from the tenth through the twelfth centuries. The three successive churches are conventionally called Cluny I, II and III. The construction of Cluny II, ca. 955–981, begun after the destructive Hungarian raids of 953, led the tendency for Burgundian churches to be stone-vaulted. In building the third and final church at Cluny, the monastery constructed what was to remain the largest building in Europe until the 16th century when the new St. Peter's in Rome was rebuilt.