The architect preserved the original 11th-century walls, covering them with Flamboyant mullions and panels. The east window of Gloucester choir has a Tudor arch, filling the wall with glass. The window tracery matches the tracery on the walls.

During the reign of Edward III the style began to dominate at the Court, especially at the redevelopment of Windsor Castle, where John Sponlee designed the buildings to house Edward's neo-Arthurian fancies. Of these the Dean's