540-599
| Beli Ap Rhun, of Gwynedd | |
| B: | 540 |
| North Wales, Wales, United Kingdom | |
| D: | 599 |
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 |
480-Yes, date unknown
| Rhun Ryfeddfawr Ap Einion, of North Britain | |
| B: | 480 |
| D: | Yes, date unknown |
|
457-Yes, date unknown
| Einion Ap Mar, of North Britain | |
| B: | 457 |
| D: | Yes, date unknown |