 Around Colchester the priory owned land at Greenstead and Cannock (or Canwick, from "Canon's Wick") in West Donyland, and several watermills in and around the town, including East Mill, Cannock Mill and Hull Mill (the latter two located on Bourne Brook, where there was a third mill, Bourne Mill, belonging to St John's Abbey).St Botolph's Priory was led by a prior, whose seal was a pointed oval of yellow brown wax, 2½ in.by 1¾ in., representing Christ seated blessing two figures, one on the right a bishop (St. Julian), and the other on the left an abbot (St. Botolph).