In 1644 it was in the middle of the Lady Chapel. The painting delineates the location of the mediaeval north screen of the Lady Chapel. The choir is surrounded by an ambulatory with apsidioles and a Lady chapel. The construction of the Our Lady Chapel began in 1714. The decoration of the Lady Chapel is also by Comper. It was completed by the building of the Lady Chapel in the 1330s. She was buried in the Henry VII Lady Chapel in Westminster Abbey. A royal mausoleum was completed underneath the Lady Chapel. The organ in the Lady Chapel is a small positive pipe organ. The passageway running to the Lady Chapel was turned into an almshouse for six bedemen. The aisles of the choir previously both extended on either side of the Lady Chapel. The Lady Chapel has a star vault. Monuments to the Warburton family are in the Lady Chapel. There is a two-manual Willis organ in the Lady Chapel. To the south of the Lady Chapel is a room known as the Chapter House.