Little remains of this abbey consecrated in the presence of William the Conqueror in the 11C. The south tower dates back to the 12C. The west facade and north tower form part of the edifice's 14C restoration. The bay above the porch dates from the late 15C. Inside, the nave is bright and harmonious. The upper sections are only 15C. The magnificent lantern-tower rising above the crossing is 13C.