| Male King of Gwynedd Cadwallon Ap Cadfan |
| Birth | 600 | |
| Death | 634 | |
| Burial | ||
| Marriage | ||
| Father | Cadfan Ap Iago, of Gwynedd | F1400 Group Sheet | |
| Mother | Tandreg Ferch Cynan, of Powys | F1400 Group Sheet | |
| Female Princess of Mercia Alcfrith Ellen |
| Birth | 594 | Mercia, , England, United Kingdom |
| Death | Yes, date unknown | |
| Burial | ||
| Father | King of Mercia Pybba | F1037 Group Sheet | |
| Mother | ||