Morant says 'The (castle) bailey was formerly encompassed on the south and west sides by a strong wall, in which were two gates. That on the south was the chief. This wall was taken down by Robt. Norfolk Esq. who erected in the room of it a range of houses now standing in the High Street. The west wall reached as far as the east side of St Helen's Lane. On the north and east sides the castle was secured by a deep ditch and strong rampart of earth... This rampart is thrown upon a wall that formerly encompassed either the Castle or Palace of Coel, on the site of the Castle is built; the buttress and other parts of which wall have lately been discovered.' <1><2>