During the Roman occupation of Britain, the island was divided into five segments, called the Five Britains. The map to the left shows three of the five: the lavender section was known as Britannia Prima, the green labeled as Britannia Secunda, and the red as Britannia Flavia. To the north, the two others were Britannia Maxima and Britannia Valentia.
The focus here, Britannia Prima, shows how far Wales extended into the midlands. Shropshire, where Wroxeter was located, was part of Wales, and the Shropshire-Hereford area was a Roman territory named Cornovii, and Wroxeter was its tribal city. The confusion of Cornovii and Cornwall in the southwest peninsula has created chaos and headaches for Arthurian buffs, because Arthur has been linked with Cornwall, but in the fifth century, Cornwall was named Dumnonii. That confusion could be re-interpreted as Ambrosius Aurelianus having his home base in Cornovii rather than
Arthur being born in Cornwall and thus “Cornish.”