Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum gives Owain 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: Trahaearn ap Caradog.
This relationship is shown by Bartrum (Trahaearn ap Caradog 1) and given by Turvey (p. xviii).
Mother: uncertain.
Bartrum (EVWG Trahaearn ap Caradog 1) shows Nest ferch Gruffudd ap Llywelyn, but Baldwin (LaI) regards this as dubious.
Spouse: unknown.
Children:
(Complete source citations for facts about the children on this page are currently outside of the scope of this project. Most information below comes from Bartrum.)
Ieuaf (died 1130) married Margred ferch Gruffudd ap Cynan.
Eilas.
References
Baldwin, Stewart. Llywelyn ap Iorwerth ancestor table. (Hosted at Rootsweb.ancestry.com. Accessed 18 May 2014).
Bartrum, Peter C (ed.) Early Welsh Genealogical Tracts. (Cardiff: University of Wales Press, 1968).
The sources Bartrum gives for Owain include:
Achau Brenhinoedd a Thywysogion Cymru,
13. “Howel ap Ieuaf ap Ywain ap Trehaiarn ap Karadawg ap Gwynn…”
Hen Lwythau Gwynedd a’r Mars.
4e. “Gwraig Iorwerth ap Llowarch oedd Wenlliant ferch Howel ap Ieuaf ap Ewein ap Trahayarn ap Karadawg ap Gwynn ap Gollwyn.”
Bartrum, Peter C., “Trahaearn ap Caradog 1” in An Electronic Version of Welsh Genealogies AD 300-1500. [The source Bartrum cites for Owain is his own Early Welsh Genealogical Tracts.]
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):
33. Gwehelieth Arwystli:
33.1 Howel m. <Ieuaf> m.<Iwain> m. Trahayarn m. Karadawg ag Gwynn m. Gollwynn ap Etnywain ap Bledyn ap Bledrus ap Kynawg Mawr ap Iorwerth Hirvlawt m. Tegonwy m. Teon m. Gwineu Deu Vreudwyt m. Bywyr Lew m. Bywdeg m. Run Rud Baladyr m. Llary m. Kasnar Wledig m. Llud m. Beli Maw.
Turvey, Roger. The Welsh Princes: The Native Rulers of Wales 1063 - 1283. (Pearson, 2002).