*Tangwystl verch Iago
born about 1025? Wales
died before 1075

father:
*Iago ap Idwal (III) Prince of Gwynedd
born about 0974 Aberffro Castle, Malltraeth, Anglesey, Wales
died 1039

mother:
*Afandreg verch Gwair
born about 0974 Aberffro, Malltraeth, Anglesey, Wales

siblings:
*Cynan ap Iago Prince of Gwynedd born about 1014 Aberffro, Malltraeth, Anglesey, Wales
Crisli verch Iago born about 0993 Gwynedd, Wales

spouse:
*Llywarch Howlbrwch
born about1010/20 Wales
(end of information)

children:
*Cynon ap Llywarch
born about 1050 Wales

biographical and/or anecdotal:

notes or source:
ancestry.com