LA

Llywelyn ap Seisyll King of Gwynedd

d. 1023

Vitals

Died
1023

Family

Children
GA
Gruffydd ap Llywelyn King of Wales
d. 1063

About

Llywelyn ap Seisyll rose to rule Gwynedd and Deheubarth; he is the documented head of this royal line.

Research notes

LLYWELYN ap SEISYLL, King of Gwynedd and Deheubarth (d.1023); father of Gruffydd (our line). DOCUMENTED FLOOR; ancestry above note-only. Standard well-documented medieval genealogy per the cited authorities; contested rungs note-only, not hardened.

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