*Llywelyn ap Seisyllt King of Deheubarth & Gwynedd
born about 0980 Rhuddlan, Flintshire, Wales
died 1021/23

father:
*Seisyll ap Ednywain
born about 0938 Wales

mother:
*Prawst Verch Elise
born Abt 0940 Of, Gwynedd, Wales

siblings:
Cynan Ap Seisyll born Abt 0984 Of, Wales died 1027

spouse:
*Angharad Verch Maredydd Queen of Powys
born Abt 0982 Of, Deheubarth, Wales
married Abt 1058 (more possibly 1008?)

children:
*Gruffydd Ap Llewelyn King of Gwynedd & Powys
born Abt 1011 Of, Rhuddlan, Flintshire, Wales
died 5 Aug 1063

biographical and/or anecdotal:

notes or source:
LDS