See also
| Husband: | Llywelyn ap SEISYLL ( -1023) | |
| Wife: | Angharad ferch Maredudd ab OWAIN (982-1077) | |
| Name: | Llywelyn ap SEISYLL | |
| Sex: | Male | |
| Father: | Seisyll ( - ) | |
| Mother: | Prawst verch ELISEDD ( - ) | |
| Occupation | King of Gwynedd, Powys and Deheubarth | |
| Death | 1023 | |
| Name: | Angharad ferch Maredudd ab OWAIN | |
| Sex: | Female | |
| Father: | Maredudd ab OWAIN (938-999) | |
| Mother: | Asritha verch LLANDILO ( - ) | |
| Birth | 0982 | |
| Death | 1077 (age 94-95) | |
Wikipedia: Llywelyn was the son of Seisyll, a man of whom little is known. Llewellyn first appears on record in 1018, that year he defeated and killed Aeddan ap Blegywryd along with four of his sons and obtained Gwynedd and Powys.