Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum gives Gwgon a number of 2 in his generational dating system, implying a birth date of, very roughly, about 1070.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Idnerth ab Edryd.
This relationship is shown by Bartrum (Marchudd 3).
Mother: unknown.
Spouse: unknown.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project.)
Iorwerth married Gwenllian ferch Rhirid.
Llywarch
Gronwy
Madog
Richard
Evidence
Bartrum adds the note: “Gwgon, y gwr a wnaeth Betws Wyrion Gwgon (G 69) Betws-yn-Rhos]”
References
Bartrum, Peter C., “Marchudd 3” in An Electronic Version of Welsh Genealogies AD 300-1500.
Guy, Ben. Medieval Welsh Genealogy. (The Boydell Press, 2020).
From Guy’s critical edition of the Llywelyn ab Iorwerth genealogies, which were based on an archetype created no later than the first half of the fourteenth century from an original compilation dating to the early thirteenth century, partly based on earlier written sources (Note that Guy is striving for textual rather than genealogical accuracy):
54 Gwyr Ros Nerfynyawn. Pedwar gwely llwyth Edryt.
54.1 Ednyfet Vychan m. Kenwrik m. Ierwerth m. Gwgawn m. Idnerth mab Edryt m. Inethan.