524-590
| Hoel, II, of Brittany | |
| B: | 524 |
| D: | 590 |
542-Yes, date unknown
| Rimo Ferch Rhun, of Gwenydd | |
| B: | 542 |
| D: | Yes, date unknown |
491-570
| King of Brittany Hoel, I | |
| B: | 491 |
| D: | 570 |
485-Yes, date unknown
| Alma Pompea De Domnonee | |
| B: | 485 |
| D: | Yes, date unknown |
475-Yes, date unknown
| Elaine Ferch Gwrleis, of Cornwall | |
| B: | 475 |
| D: | Yes, date unknown |
470-556
| King of Brittany Budic, I | |
| B: | 470 |
| D: | 556 |
| Duke of Cornwall Gwrleis Sap Ap Sartogys | |
| B: | 460 |
| D: | 490 |
452-Yes, date unknown
| Iferna Ferch Amlaydd, of Dumnonia | |
| B: | 452 |
| D: | Yes, date unknown |
445-Yes, date unknown
| Duke of Cornwall Sartogys Ap Pandwlff | |
| B: | 445 |
| D: | Yes, date unknown |
430-Yes, date unknown
| Duke of Cornwall Pandwlff Fawr Ap Gerdan | |
| B: | 430 |
| D: | Yes, date unknown |
415-Yes, date unknown
| Duke of Cornwall Gerdan Ap Solor | |
| B: | 415 |
| D: | Yes, date unknown |
400-Yes, date unknown
| Duke of Cornwall Solor Ap Nor | |
| B: | 400 |
| D: | Yes, date unknown |
385-Yes, date unknown
| Duke of Cornwall Nor Ap Owain | |
| B: | 385 |
| D: | Yes, date unknown |
365-425
| Duke of Cornwall Owain Finddu | |
| B: | 365 |
| D: | 425 |
630-682
| King of Man Merfyn Fawr Ap Cynan | |
| B: | 630 |
| D: | 682 |
610-Yes, date unknown
| Cynan Ap Anllech, of Man | |
| B: | 610 |
| D: | Yes, date unknown |
590-Yes, date unknown
| Anillech Ap Tudwal, of Man | |
| B: | 590 |
| D: | Yes, date unknown |
570-Yes, date unknown
| Tudwal Ap Rhun, of Man | |
| B: | 570 |
| D: | Yes, date unknown |
550-Yes, date unknown
| Rhun Ap Neithon, of Man | |
| B: | 550 |
| D: | Yes, date unknown |
520-Yes, date unknown
| Neithon Ap Senyllt, of Man | |
| B: | 520 |
| D: | Yes, date unknown |
460-Yes, date unknown
| Dingad Ap Tudwal, of Man | |
| B: | 460 |
| D: | Yes, date unknown |
430-Yes, date unknown
| Tudwal Ap Ednyfed, of Man | |
| B: | 430 |
| D: | Yes, date unknown |
397-Yes, date unknown
| King of Dyfed Ednyfed Ap Annun | |
| B: | 397 |
| D: | Yes, date unknown |
367-Yes, date unknown
| King of Dyfed Annun Dyfed Ap Maxen | |
| B: | 367 |
| D: | Yes, date unknown |
660-740
| King of Powys Elisedd | |
| B: | 660 |
| D: | 740 |
627-700
| King of Powys Gwylog | |
| B: | 627 |
| D: | 700 |
625-Yes, date unknown
| Sanan Ferch Nowy, of Dyfed | |
| B: | 625 |
| D: | Yes, date unknown |
612-680
| King of Powys Beli | |
| B: | 612 |
| D: | 680 |
582-620
| King of Powys Eiludd | |
| B: | 582 |
| D: | 620 |
550-613
| King of Powys Cynan Garwyn | |
| B: | 550 |
| D: | 613 |
| King of Powys Brochfael Ysgythrog | |
| B: | 502 |
| D: | 560-570 |
470-570
| King of Powys Cyngen Glodrydd | |
| B: | 470 |
| D: | 570 |
506-Yes, date unknown
| Tydwall Ferch Brychan, of Manau | |
| B: | 506 |
| D: | Yes, date unknown |
460-Yes, date unknown
| Morcant Ap Pascent, of Powys | |
| B: | 460 |
| D: | Yes, date unknown |
426-Yes, date unknown
| King of Gwerthrynion Pascent | |
| B: | 426 |
| D: | Yes, date unknown |
388-Yes, date unknown
| Sevira Ferch Maxen, of Brita | |
| B: | 388 |
| D: | Yes, date unknown |
390-480
| High King of Britain Vortigern | |
| B: | 390 |
| D: | 480 |
340-388
| Emperor of Brita Maxen Wledig | |
| B: | 340 |
| D: | 388 |
350-Yes, date unknown
| Elen Ferch Eudaf, of Rome | |
| B: | 350 |
| D: | Yes, date unknown |
|
320-Yes, date unknown
| Maximian Constans, of Brita | |
| B: | 320 |
| D: | Yes, date unknown |