Possible motte raised over Roman bath. Reported in PastScape as "Site of a Roman building uncovered in 1766 when mosaics and a hypocaust were found, possibly the site of a Roman villa; associated with a cropmark of a rectangular enclosure." Nothing in the VCH tenurial history (VCH 1959) would suggest this as a manorial centre. The castle place-name is most probably a much latter corruption of the saxon 'chester' place-name applied to the Roman town.