Wikipedia:
Rhufoniog |
Rhufoniog was a small sub-kingdom of the Kingdom of Gwynedd and later a cantref in medieval Wales. It was ruled by Rhufon, the third son of the first King of Gwynedd, Cunedda, and his direct descendants from the year 445 until the year 540 when it was likely absorbed back into direct control of Gwynedd proper.
References
- The History Files: Post-Roman Celtic Kingdoms: Rhufoniog
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