The next thing undertaken was to place in the old Norman choir the magically lovely choir stalls (1245-1315) which happily still remain to us. Perhaps it was their enthusiastic loveliness which led about 1320 to the rebuilding of the Presbytery and the lovely tabernacle in the back of the wall of the Feretory. When all this was done there remained of the old Norman church only the transepts and the nave. The transepts remain to us still, but the nave was transformed, in the very beginning of the Perpendicular time. It was transformed not rebuilt. Bishop William of Wykeham has obliterated Bishop Walkelin, but fundamentally the nave of Winchester remains Norman still. The Perpendicular work is only a lovely mask, or rather just the sunlight of the fourteenth century which has come into the dark old Norman building. The most notable change is the roof, in Norman times a flat ceiling, now a magnificent vault. But that century was not content with transforming the nave, it littered it with the first of its various delights, those chantries which are among the greatest splendours of this Cathedral, and which still, in some sort, commemorate Bishop Edingdon (1366), Bishop Wykeham (1404), Bishop Beaufort (1447), Bishop Waynflete (1416), Bishop Fox (1528) and Bishop Gardiner (1555) the last Catholic Bishop to fill the See. [Illustration: NORTH TRANSEPT, WINCHESTER CATHEDRAL] The transformation of the nave, which occupied full an hundred years, was not, however, the last work undertaken in the Cathedral before the change of religion. Bishop Courtenay, in the last years of the fifteenth century, lengthened the Lady Chapel, and finally Bishop Fox in the very beginning of the sixteenth century began the transformation of the early fourteenth century Presbytery, but got little further than the insertion of the Perpendicular windows. He did, however, transform the Norman aisles there, and screened them, and upon the screens in six fine Renaissance chests he gathered the dust of the old Saxon saints and kings.