Family of King of Gwynedd, Cadwallon II ap Cadfan and of Mercia, Helen?

Families

Unknown Partner King of Gwynedd, Cadwallon II ap Cadfan [I35951] ( * 591 + BET. 634 - 635 )
Unknown Partner of Mercia, Helen? [I35952] ( * 594 + ... )
  Children
Name Birth Date Death Date
King of Gwynedd, Cadwaladr ‘Fendigaid’ [I35950]615BET. 664 - 682

Narrative

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The vary late statement of Geoffrey of Monmouth that he married a sister of King Penda of Mercia can probably be dismissed as one of Geoffrey's numerous fabrications.