Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum gives Madog a number of 6 in his generational dating system, implying a birth date of, very roughly, about 1200. It seems likely that it was somewhat earlier.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Rhirid Flaidd ap Gwrgeneu ap Gollwyn.
This relationship is shown by Bartrum (Rhirid Flaidd 1).
Mother: Gwenllian ferch Ednyfed.
This relationship is shown by Bartrum (Rhirid Flaidd 1).
Spouse: Efa ferch Philip Ddu.
This relationship is shown by Bartrum (Rhirid Flaidd 1). There seem to be chronological problems in Efa’s pedigree (Bartrum Bleddyn ap Cynfyn 43; Bleddyn ap Cynfyn 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.)
Nest married Ieuan ap Hywel.
Gwenllian married Owain ap Bleddyn.
Gwenllian married Llywarch ap Heilin Gloff.
Gwrgeneu of Rhiwedog.
Rhirid Fychan married Gwenllian ferch Dafydd Fychan.
Rhys.
Gwyn.
Iorwerth married Gwerful ferch Cynwrig.
Evidence
Maybe he was the Madoc filio Rired who witnessed a 1217 grant by Llywelyn ab Iorwerth to Morgan Gam (Pryce no. 239).
References
Bartrum, Peter C., “Rhirid Flaidd 1” in An Electronic Version of Welsh Genealogies AD 300-1500.
[The source that Bartrum cites for Madog is his own Early Welsh Genealogical Tracts.]
Bartrum, Peter C (ed.) Early Welsh Genealogical Tracts. (Cardiff: University of Wales Press, 1968).
The sources Bartrum gives for Madog include:
Hen Lwythau Gwynedd a’r Mars.
13d. “Madoc ap Rririd vlaidd. I vam oedd Wenllian verch Ednyfed ap Kynwric ap Rriwallon o Vaelor.
The Record of Caernarvnon p. 261, p. 265.
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):
58.2 Madoc ap Rririd vlaidd: i vam oedd Wenllian verch Ednyved ap Kywric ap Rriwallon o vaelor.
Pryce, Huw. The Acts of the Welsh Rulers 1120 - 1283 (Cardiff: University of Wales Press, 2005).