Ystradwel Ferch Cadfan Gadeon, of Dumnonia
375 - Yes, date unknown(
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- 1 Ystradwel Ferch Cadfan Gadeon, of Dumnonia [1] b. 375 d. Yes, date unknown
- King of Britain Coel Hen b. 360 d. 430
- 2 Gwawl Ferch Coel, of Britain [1.1] b. 390 d. Yes, date unknown
- King of Gwenydd Cunedda Wledig b. 386 d. 460
- 3 Gwen Ferch Cunedda, of Gwenydd [1.1.1] b. 414 d. Yes, date unknown
- Amlawdd Wledig Ap Cynwal, of Dumnonia b. 410 d. Yes, date unknown
- 4 Iferna Ferch Amlaydd, of Dumnonia [1.1.1.1] b. 452 d. Yes, date unknown
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- 4 Iferna Ferch Amlaydd, of Dumnonia [1.1.1.1]
- 3 King of Gwenydd Einion Yrth [1.1.2] b. 417 d. 500
- Prawst Ferch Tidlet, Wife, of Gwenydd b. 422 d. Yes, date unknown
- 4 King of Gwenydd Cadwallon Lawhir Ap Einion [1.1.2.1] b. 442 d. 517
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- 4 King of Gwenydd Cadwallon Lawhir Ap Einion [1.1.2.1]
- 3 Gwen Ferch Cunedda, of Gwenydd [1.1.1]
- 2 King of Northern Britain, St. Ceneu [1.2] b. 404 d. 470
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- 3 King of Rheged Gurgust Lledlwm [1.2.1] b. 425 d. 500
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- 4 King of Rheged Meirchion Gul Ap Gwrst [1.2.1.1] b. 455 d. 540
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- 4 King of Rheged Meirchion Gul Ap Gwrst [1.2.1.1]
- 3 King of North britain Mar Maeswig Gloff Ap Ceneu [1.2.2] b. 427 d. Yes, date unknown
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- 4 Arthwys Ap Mar, of Brnffenigl [1.2.2.1]
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- 4 Einion Ap Mar, of North Britain [1.2.2.2] b. 457 d. Yes, date unknown
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- 4 Arthwys Ap Mar, of Brnffenigl [1.2.2.1]
- 3 King of Rheged Gurgust Lledlwm [1.2.1]
- 2 Gwawl Ferch Coel, of Britain [1.1]