580-617
| Cadfan Ap Iago, of Gwynedd | |
| B: | 580 |
| D: | 617 |
580-Yes, date unknown
| Tandreg Ferch Cynan, of Powys | |
| B: | 580 |
| Powys, , Wales, United Kingdom | |
| D: | Yes, date unknown |
560-613
| King of Gwynedd Iago Ap Beli | |
| B: | 560 |
| D: | 613 |
540-599
| Beli Ap Rhun, of Gwynedd | |
| B: | 540 |
| North Wales, Wales, United Kingdom | |
| D: | 599 |
580-620
| King of Brittany Hoel, III | |
| B: | 580 |
| D: | 620 |
600-Yes, date unknown
| Fratelle Ferch Twedwr, of Dumnonia | |
| B: | 600 |
| D: | Yes, date unknown |
560-610
| King of Brittany Alain, I | |
| B: | 560 |
| D: | 610 |
560-Yes, date unknown
| Azenor, Wife, of Brittany | |
| B: | 560 |
| D: | Yes, date unknown |
542-Yes, date unknown
| Rimo Ferch Rhun, of Gwenydd | |
| B: | 542 |
| D: | Yes, date unknown |
524-590
| Hoel, II, of Brittany | |
| B: | 524 |
| D: | 590 |
|
520-Yes, date unknown
| Perwyr Ferch Rhun, of North Britain | |
| B: | 520 |
| D: | Yes, date unknown |
| King of Gwynedd Rhun Hir Ap Maelgwyn | |
| B: | 520 |
| D: | 586 |