Eagles Have Flown
King of Ewyas
Probably the great-grandnephew of Eudaf Hen (the Old), former king of Ewyas, Meirchion son of Gwrgant seems to have been the last king of Ewyas. The kingdom was without a ruler in around 430 so that Vortigern was able to give it to his eldest son, Vortimer. Vortimer appears to have been able to claim the area as his inheritance through the maternal line as a great grandson of Eudaf Hen.
Ewyas as a distinct region seems to date from at least the late third century, and was situated at the very centre of what in the mid-fourth century became the Roman civil administration’s province of Britannia Prima, stretching from Cornubia to North Wales and east to the Gloucester and Cirencester areas.
from Kessler, P. L. (2007, September 8). Post-Roman Britain: Early Independent Britain AD 400-425. Retrieved from http://www.historyfiles.co.uk/FeaturesBritain/BritishMapAD400.htm