The church is rectangular with a nave and two aisles, and is the largest city is parish Much original glass survives; part of the East window dates from 1330. The pillars show Henry's crown and keys or crossed swords, the symbols of St Peter and St Paul. he higher windows (the clerestory and a false West front were added around 1600. The dark marble slab in the main aisle is probably an old Minster altar table brought here in 1617