- Culture Group: British
As a region just south of Hadrian's Wall and containing several Roman fortifications it was a key area in stopping Pictish raids during the fourth century. As it possessed a natural harbor it was significant in Irish contacts and trade. As the home of Arthur it was one of the most important regions in Britain.
Reged was abandoned during the fourth century, when several weak kings were installed as buffers. By the fifth century, the region had devolved into dozens of small kingships. Arthur's presence changed that situation within two years.
- The Demon of Lleuenydd