Below the window line, and running round three sides of the chapel is an arcade of richly decorated 'nodding ogees', with Purbeck marble pillars, creating scooped out seating booths. There are three arches per bay plus a grander one for each main pillar, each with a projecting pointed arch covering a subdividing column topped by a statue of a bishop or king. Above each arch is a pair of spandrels containing carved scenes which create a cycle of 93 carved relief sculptures of the life and miracles of the Virgin Mary. The carvings and sculptures would all have been painted. The window glass would all have been brightly coloured with major schemes perhaps of biblical narratives, of which a few small sections have survived. At the reformation, the edict to remove images from the cathedral was carried out very thoroughly by Bishop Thomas Goodrich. The larger statues have gone. The relief scenes were built into the wall, so each face or statue was individually hacked off, but leaving many finely carved details, and numerous puzzles as to what the original scenes showed. After the reformation it was redeployed as the parish church (Holy Trinity) for the town, a situation which continued up to 1938.