It does not appear when the Jesus Chapel, now commonly known as the Islip chantry, was built. Its accounts, if they survive, are so inextricably mixed up with those of building in other parts of the church that it is impossible to separate them. We have, however, hints here and there which suggest that it followed closely upon the completion of the chapel of Henry VII. It is certain that the Jesus Chapel was in use before it was actually finished, for the Sub-sacrist notes the provision of pound tapers to be burnt there at Christmas, 1523, while two years later there is a record in the _Novum Opus_ roll of a payment for carving in the chapel. The final decoration was not completed until 1530, when Master Humfrey received the last instalment of the money owing to him for “payntyng uppon the wall in Ihs Chappell” and for some further work in connection with the Five Wounds which John Ellys had made for the stairs. The Islip roll gives some faint indication of the painted Crucifixion on the eastern walls above the altars and shews also the medallion of the head of our Lord on the outer side of the western parapet. There is record that weekly masses were said for Islip after his death and these would naturally be performed in the chapel where he lay buried, so that Islip’s chantry is a fitting description of it; but it is to be regretted that its earlier name and dedication should be relatively forgotten. The completion of the nave and the building of this chapel do not form the whole tale of work for which Islip was directly responsible. The same document which records the payment for painting of the Jesus Chapel refers to _my lordes chapell at Chenygates_. On the northern side of the courtyard over part of the substructure of Abbot Litlyngton he built a set of rooms of two storeys and continued the building round the side of the south-west tower, making a window into the nave of the church. The whole of course forms a private part of the present Deanery, but the panelled chamber called Jericho Parlour which looks on to the courtyard is well enough known. The chapel at Cheynygates has been identified with a chamber on the upper floor built in between the tower and the first buttress of the nave.