Nielsen Hayden genealogy
Ancestors of Thomas ap Rhodri ab Owain Gwynned
Abt 1170 - ┌── Iago ab Idwal, King of Gwynedd ( - 1039) =>
┌── Cynan ab Iago
┌── Gruffydd ap Cynan ab Iago, King of Gwynedd (Abt 1055 - 1137)(m. Abt 1095)
│ │ ┌── Amlaíb mac Sitric ( - 1034) =>
│ └── Radnailt of Dublin
│ └── Máelcorcre ingen Dúnlaing =>
│
┌── Owain Gwynedd, King of Gwynedd ( - 1169 bur.Bangor Cathedral, Bangor, Gwynedd, Wales)
│ │
│ │ ┌── Edwin of Tegeingl ( - 1073)
│ │ ┌── Owain ab Edwin ( - 1104)
│ │ │ └── Iwerydd ferch Cynfyn =>
│ │ │
│ └── Angharad ferch Owain ( - 1162)(m. Abt 1095)
│
┌── Rhodri ab Owain Gwynned ( - 1195)
│ │
│ │ ┌── Edwin of Tegeingl ( - 1073)
│ │ ┌── Owain ab Edwin ( - 1104)
│ │ │ └── Iwerydd ferch Cynfyn =>
│ │ │
│ │ ┌── Gronwy ab Owain ab Edwin (Abt 1070 - ??)
│ │ │ └── (Unknown daughter of Ednywain Bendew)
│ │ │
│ └── Cristin ferch Gronwy ab Owain ab Edwin (of Tegeingl, Wales - ??)
│
Thomas ap Rhodri ab Owain Gwynned (Abt 1170 - ??)