Nielsen Hayden genealogy
Iorwerth Drwyndwn ap Owain Gwynedd
- Abt 1174
Generation: 1
Generation: 3
Generation: 4
1. Iorwerth Drwyndwn ap Owain Gwynedd (son of Owain Gwynedd, King of Gwynedd and Gwladus ferch Llywarch); died about 1174. Family/Spouse: Margred ferch Madog. [Group Sheet] [Family Chart]
Children:- Llywelyn Fawr ap Iorwerth was born about 1173; died on 11 Apr 1240 in Aberconwy Abbey, Conwy, Wales; was buried in Aberconwy Abbey, Conwy, Wales.
2. Owain Gwynedd, King of Gwynedd (son of Gruffydd ap Cynan ab Iago, King of Gwynedd and Angharad ferch Owain); died in 1169; was buried in Bangor Cathedral, Bangor, Gwynedd, Wales. Owain married Gwladus ferch Llywarch. [Group Sheet] [Family Chart]
3. Gwladus ferch Llywarch (daughter of Llywarch ap Trahearn). Children:
- 1. Iorwerth Drwyndwn ap Owain Gwynedd died about 1174.
- Gwenllian ferch Owain
Generation: 3
4. Gruffydd ap Cynan ab Iago, King of Gwynedd was born about 1055 (son of Cynan ab Iago and Radnailt of Dublin); died in 1137. Gruffydd married Angharad ferch Owain about 1095. Angharad (daughter of Owain ab Edwin) died in 1162. [Group Sheet] [Family Chart]
5. Angharad ferch Owain (daughter of Owain ab Edwin); died in 1162. Children:
- 2. Owain Gwynedd, King of Gwynedd died in 1169; was buried in Bangor Cathedral, Bangor, Gwynedd, Wales.
- Susanna ferch Gruffydd ap Cynan
- Gwenllian ferch Gruffudd died in 1136.
- Cadwaladr ap Gruffudd ap Cynan, King in Wales died in 1172; was buried in Bangor Cathedral, Bangor, Gwynedd, Wales.
6. Llywarch ap Trahearn (son of Trahearn ap Caradog, King of Gwynedd); died after 1124. Children:
Generation: 4
8. Cynan ab Iago (son of Iago ab Idwal, King of Gwynedd). Cynan married Radnailt of Dublin. [Group Sheet] [Family Chart]
9. Radnailt of Dublin (daughter of Amlaíb mac Sitric and Máelcorcre ingen Dúnlaing). Children:
- 4. Gruffydd ap Cynan ab Iago, King of Gwynedd was born about 1055; died in 1137.
10. Owain ab Edwin (son of Edwin of Tegeingl and Iwerydd ferch Cynfyn); died in 1104. Children:
- 5. Angharad ferch Owain died in 1162.
- Aldud ab Owain ab Edwin
- Gronwy ab Owain ab Edwin was born about 1070.
12. Trahearn ap Caradog, King of Gwynedd was born in of Arwystli, Wales (son of Caradog); died in 1081. Children:
- 6. Llywarch ap Trahearn died after 1124.