 The present east window of the chancel is also Decorated Gothic.The tower's upper stages are octagonal, possibly in reference to a style of church towers in [[Normandy]] whence the [[monk]]s from Fécamp would have originated.In the 15th century a [[English Gothic architecture#Perpendicular Gothic|Perpendicular Gothic]] [[clerestory]] was added to the nave, and the roofs of the nave, aisles and chancel were all rebuilt in the shallow-pitched late-mediaeval manner.