St Mary's Hall. Built 1340-1460 restored 1824 thought to include parts of a 12 century castle in the south wall. Originally the guild hall and chambers for the Merchants Guilds of St Mary and Holy Trinity founded 1340 and 1364. Became the first seat of local government int eh town. Mayor J. Ward elected 1346 started an unbroken series to the present day. The building is scheduled as an ancient monument