 The cathedral was seriously damaged by an earthquake of 1382, losing its bells and campanile.From the late 14th century the nave and transepts were rebuilt, on the Norman foundations in the Perpendicular style under the direction of the noted master mason Henry Yevele.In contrast to the contemporary rebuilding of the nave at Winchester, where much of the existing fabric was retained and remodeled, the piers were entirely removed, and replaced with less bulky Gothic ones, and the old aisle walls were completely taken down except for a low "plinth" left on the south side.