Quick Facts
- Also spelled:
- Caedwalla or Cadwalader
- Died:
- 633 or 634
- Title / Office:
- king (625-633), Gwynedd
- Role In:
- Heptarchy
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Cadwallon
Welsh king of Gwynedd
Also known as: Cadwalader, Caedwalla
Cadwallon (died 633 or 634) was a British king of Gwynedd (in present north Wales) who, with the Mercian king Penda, invaded Northumbria in 632 or 633, killed the Northumbrian king Edwin in battle in Hatfield Chase (south of York), and devastated the region. A year later Cadwallon was defeated and slain by Oswald, who became king of Northumbria, ending one of the greatest Welsh threats to the Anglo-Saxon kingdoms.
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