Dumnonia until they submitted to the See of Canterbury in the mid-9th century. Parish organisation was a later development of fully Normanised times. Around AD 55, the Romans established a legionary fortress at "Isca Dumnoniorum", modern Exeter, but west of Exeter the area remained largely un-Romanized. Most of Dumnonia is notable for its lack of a villa system, though there were substantial numbers south of Bath and around Ilchester, and for its many settlements that have survived from the Romano-British period. As in other Brythonic areas, Iron Age hillforts, such as Hembury and Cadbury Castle, were refortified in post-Roman times for
Princesshay High Street between Paris Street and the Cathedral precinct, lying north of Southernhay. It replaced the pre-war area known as Bedford Circus (which included the Eastgate Arcade) that was levelled by the City Council following damage in the Blitz. Before building commenced, a plaque was unveiled at the site on 21 October 1949 by Princess Elizabeth after whom the development was named. After demolition of the precinct started in 2005, archaeological work was undertaken owing to its potential interest, being close to the centre of the ancient Roman town of Isca Dumnoniorum and being continuously inhabited since that time. Among