site to Felix either at Dunwich or Felixstowe, since it was he who granted the land, possibly an old shore fort, at Cnobheresburg to Saint Fursey (Historia ecclesiastica, iii.17–18). Bede's use of the term civitas for Dommoc, (which is also occasionally called Domnoc or Dommoc-ceastre), suggests that the site had once been a Roman settlement, possibly fortified. The re-use of Roman forts or fortified enclosures for early Anglo-Saxon ecclesiastical and monastic purposes is well-attested, for instance at Othona (Bradwell-on-Sea, Essex), Rochester and Reculver (Kent), Durobrivae (Castor, Cambridgeshire), and in East Anglia at Fursey's monastery (probably Burgh Castle, or Gariannonum). It is certain that there was a stone fort at Walton (Walton Castle), like other shore-forts of about enclosure, and that it was adjacent to a large Roman settlement, most of which (including the fort) is now lost into the sea. The nature of Roman Dunwich is less well understood, for although some important Roman roads lead towards it, the site was lost to the sea too early for archaeological records. However it formerly had an important harbour which might have been protected by a fort. (Similarly Aldeburgh (which means 'old burgh' in Old English) may also have possessed a fort defending the Alde estuary.) The placename evidence is also indecisive. G.E. Fox and C.E. Stevens suggested that the fort at Walton might be the Portus Adurni of the Notitia Dignitatum, usually identified as Portchester. Be that as it may, the existence of additional forts not mentioned in the Notitia presents no difficulty since that is not a list of all fortresses, but of military units and their stations under the command of the Count of the Saxon Shore. Dunwich The similarity of sound between Dommoc and Dunwich may be misleading. Dommoc is a difficult name to construe, but could derive from the Latin dominicum, a church, possibly in an Irish-assimilated form domnhac, as Fletcher notes. The name Dunwich (in c. 1200 Donewic or Donewiz) should mean the wic (market, possibly from vicus, often riverine or estuarine) at the hill. The important wic names of Ipswich and Norwich are comparable. If the name Dommoc became Dunwich, its original meaning was lost in the shift and a different etymological structure was adopted to explain and replace it, between the tenth and twelfth centuries. There was no known church dedicated to Saint Felix at Dunwich, but that is no objection since the founder