See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173378195046 (June 19, 2017; Anne Brannen, curator)

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173377939942 (May 6, 2017; Anne Brannen, curator)

Please see Darrell Wolcott: The Other Gwenwynwyn; http://www.ancientwalesstudies.org/id167.html. (Steven Ferry, October 7, 2020.)

Please see Peter Bartrum: Gruffudd ap Cynan 3; https://www.geni.com/documents/view?doc_id=6000000173392989825 (Steven Ferry, September 7, 2021.)

Please see Darrell Wolcott: Kingship of Gwynedd - 1170 to 1175: http://www.ancientwalesstudies.org/id301.html (Steven Ferry, September 8, 2022.)

Please see Darrell Wolcott: The Children of Owain Gwynedd; http://www.ancientwalesstudies.org/id302.html (Steven Ferry, September 11, 2022.)

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Gwenllian. daughter of Owain Gwynedd, King of Gwynedd. Marriage 1 Owain Cyfeiliog ap Owain b: 1125 in Southern Powys, Wales and had issue,

   1. Gwnwynwyn, succeeded his father.

2. Caswallon.
# ID: I30914

1. Name: Gwenllian verch Owain
2. Given Name: Gwenllian verch
3. Surname: Owain
4. Sex: F
5. Birth: Abt 1125 in Caernarvonshire, Wales
6. Death: Y
7. Change Date: 21 Sep 2005 at 15:22

Father: Owain Gwynedd Ap Gruffudd b: Abt 1100 in The Forgotten Monarchy of Scotland"

Mother: Gwladus Verch Llywarch b: Abt 1100 in Arwystli, Montgomeryshire, Wales

Marriage 1 Owain Cyfeiliog ap Owain b: 1125 in Southern Powys, Wales

   * Married:

* Change Date: 21 Sep 2005
Children

  1. Has Children Gwenwynwyn ap Owain b: 1165 in Powys, Wales

Marriage 2 Hwfa ap Cynwrig b: Abt 1100 in Caernarvonshire, Wales

Children

  1. Has Children Angharad verch Hwfa b: Abt 1143 in Denbighshire, Wales

Gwenllian II verch Owain born about 1130 Caernarvonshire, Wales daughter of Owain Gwynedd and his second wife Cristin verch Gronwy.