Nielsen Hayden genealogy
Descendants of Cadwaladr Fendigaid ap Cadwallon, King of Gwynedd
- 664Father: Cadwallon ap Cadfan, King of Gwynedd ( - 634)
Cadwaladr Fendigaid ap Cadwallon, King of Gwynedd ( - 664)
   └─ Idwal Iwrch ap Cadwaladr Fendigaid ( - 720)
   
       └─ Rhodri Molwynog ab Idwal Iwrch, King of Gwynedd ( - 754)
       
           └─ Cynan Dindaethwy ap Rhodri Molwynog, King of Gwynedd ( - 816) =>
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