WAYMER-CASTLE, (Hertfordshire) on the E. side of the Stort, near Bishops-Stortford, was built on a steep artificial mount, to defend the trade of the T. and given by William the Conqueror to the See of London, to whose Bps. it still bel. together with certain manors and farms, whose tenants are charged with rents for castle-guard, though it was demolished by K. John, in resentment at the then Bp. of London, for being concerned with those of Ely and Winchester in publishing the pope's interdict upon the realm. Adjoining to it was that called the Convicts Prison, where Bp. Bonner, in Q. Mary's R. confined the convict protestants in a deep dark dungeon. This prison-house, which consisted of several other rooms, was sold, in 1649, to certain persons, who pulled it down, and erected a good inn near it. Some Roman coins, of the lower emperors, have been found in the castle-garden.