Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum gives Gwgon a number of 3 in his generational dating system, which implies a birth date of, very roughly, about 1100.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Bleddyn ap Maenyrch ap Dryffin.
This relationship is shown by Bartrum (Bleddyn ap Maenyrch 1).
Mother: Elen ferch Tewdwr Mawr.
This relationship is shown by Bartrum (Bleddyn ap Maenyrch 1).
Spouse: Gwenllian ferch Philip Gwis of Wiston.
This relationship is shown by Bartrum (Bleddyn ap Maenyrch 1).
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.)
Gwallter.
Madog.
Cydifor of Glyntawe married Mallt ferch Llywelyn Fychan.
Trahaearn of Llan-gors married Gwenllian ferch Rhys.
Thomas.
References
Bartrum, Peter C., “Bleddyn ap Maenyrch 1” in An Electronic Version of Welsh Genealogies AD 300-1500.
[The sources that Bartrum cites for Gwgon are: “Plant yr Arglwydd Rhys” 2b, copied about 1500 from a MS probably composed in the mid to late 1300s; Peniarth 128 (789b, 790a), “Llyfr Edward ap Roger”, written before 1582; Peniarth 133 (123), and Peniarth 176 (367), and , by Gruffudd Hiraethog (died 1564); and Peniarth 132 (227) by Gruffudd Hiraethog and Lewys ab Edward. Bartrum comments on “Plant yr Arglwydd Rhys” that it contains palpable errors and must be treated with caution. The relevant passage is: “Gwraic Gruffudd ap Ednyfed oedd Wenllian verch Howel ap Trahayarn ap Gwgan ap Bleddyn ap Maenyrch o Vrychainioc.”]