_Tegfan ______________
_Coel Hen Godebog K in N Britain_|______________________
_Ceneu K in N Britain_|
| | _Gadeon K of Dumnonia_
| |_Ystradwal of Dumnonia___________|______________________
_Maeswig Gloff K in N Britain_|
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_Einion K of York_|
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|--Rhun Ryfeddfawr
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