Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum gives Llywarch a number of 4 in his generational dating system, which implies a birth date of, very roughly, 1130.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Brân ap Dinawal ap Tudwal.
This relationship is shown by Bartrum (Llywarch ap Brân 1). Bartrum shows his ancestry back to Rhodri Mawr: Llywarch ap Brân ap Dinawal ap Tudwal ab Einudd ab Aelan ab Alser ap Tudwal Gloff ap Rhodri Mawr.
Mother: unknown.
Spouse: Rhael ferch Gronwy.
This relationship is shown by Bartrum (Llywarch ap Brân 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.)
Tangwystl married Llywarch Goch.
Tangwystl married Ednyfed Fychan.
Iorwerth married Gwenllian ferch Hywel.
Madog.
Cadwgon married Gwenllian ferch Cynan ab Owain Gwynedd.
Einion married Tangwystl ferch Yr Arglwydd Rhys.
Hoedlyw.
References
Bartrum, Peter C., “Llywarch ap Brân 1” in An Electronic Version of Welsh Genealogies AD 300-1500. [The source that Bartrum cites for Llywarch is his own Early Welsh Genealogical Tracts.]
Bartrum, Peter C (ed.) Early Welsh Genealogical Tracts. (Cardiff: University of Wales Press, 1968).
The source Bartrum gives for Llywarch is:
Hen Lwythau Gwynedd a’r Mars.
4a. “Kadwgon a Iorwerth meibon Llywarch ap Brân ap Dinawal ap Ednydd m. Aelan m. Alker m. Tudwal m Rhodri mawr.”
4b. “Rhael ferch Oronw ap Ewein ap Edwin oedd fam Kadwgon a Iorwerth meibyon Llywarch ap Brân.”
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):
50.1 Kadwgon a Iorwerth, meibion Llywarch ap Bran ap <Dynawal> ap Eynyd m. Aelan m. Alker m. Tudawal m. Rodri Mawr.
50.1.1 Rael ferch Oronw ap Ewein ap Edwin oed fam Kadwgon a Iorwerth, meibyon Llywarch ap Brann.