The History of Wales - The Battle of Hatfield Chase was fought on 12 October 633, near Doncaster. It resulted in a decisive victory for an alliance of Gwynedd and Mercia led
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Wales Vs England: 1000+years of Resistance: - The Welsh Castle Project
12, The Age of the Saints - The History of Wales
Icons of Cymru
Cadwallon ap Cadfan Brenin Gwynedd (± 600-± 635) » Stamboom Homs » Genealogie Online