Bishop Bronescombe (1257-1280).
The windows north and south of the retro-choir probably belong to this period. The roll-moulding appears on the principal curves only of the tracery; ever after it spreads over the whole of the tracery. The lower lights of these windows are lancets; the circles in the head are cusped. The chapels of St. Mary Magdalene and St. Gabriel, on either side of the Lady chapel, seem also to have been remodelled at this time; for the side windows of these two chapels have geometrical tracery earlier than that of the Lady chapel.