450 - 
| Llywarch Hen ap Elidyr Abt 520- |
| Llywarch Hen ap Elidyr | |
| B: | Abt 520 |
| Scotland | |
| D: | Montgomeryshire, Wales |
| Elidir Lydanwyn ap Meirchion | |
| B: | 480 |
| England | |
| D: | Montgomeryshire, Wales |
| King of the Celts Meirchion Gul 438-535 |
| King of the Celts Meirchion Gul | |
| B: | 438 |
| England | |
| D: | 535 |
| Wales | |
| Essylt ferch Culwynedd | |
| B: | 440 |
| England | |
| D: | England |
|
| Gwrwst Ledlwm 450- |
| Gwrwst Ledlwm | |
| B: | 450 |
| England | |
| D: | Wales |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
