central tower no relation battlemented turrets
Early English
The Early English Gothic chapter house, built between 1230 and 1265, is rectangular and opens off a "charming" vestibule leading from the north transept. The chapter house has grouped windows of simple untraceried form. Alec Clifton-Taylor describes the exterior of this building as a "modest but rather elegant example of composition in lancets" while Nikolaus Pevsner says of the interior "It is a wonderfully noble room" which is the "aesthetic climax of the cathedral". To the north of the chapter house is the slype, also Early English in style, and the warming room, which contains two large former fireplaces. The monastic refectory to the north of the cloister is of about the same date as the chapter house.The Lady Chapel to the eastern end of the choir dates from between 1265 and 1290. It is of three bays, and contains the Shrine of St Werburgh, dating from the 14th century. The vault of the Lady Chapel is the only one in the cathedral that is of stone. It is decorated with carved roof bosses representing the Trinity, the Madonna and Child, and the murder of Thomas Becket. The chapel also has a sedilia and a piscina.Perpendicular Gothic
From about 1493 until 1525 the architect appears to have been Seth Derwall, succeeded by George Derwall until 1537. Seth Derwall completed the south transept to a Perpendicular Gothic design, as seen in the transomed windows of the clerestory. He also built the central tower, southwest porch and cloisters. Work commenced on the south west tower in 1508, but it had not risen above the roofline at the time of the dissolution of the monasteries, and has never been completed. The central tower, rising to 127 feet (39 m), is a "lantern tower" with large windows letting light into the crossing. Its external appearance has been altered by the addition of four battlemented turrets by George Gilbert Scott in the 19th century.