Events
Date of Birth: unknown.
Place of Birth: unknown.
Bartrum (Llywarch ap Brȃn 4) gives Ieuan a number of 9 in his generational dating system, implying a birth date of, very roughly, about 1300.
Living: 1352.
This date is given by Bartrum (Llywarch ap Brȃn 4), citing The Record of Caernarvon (78).
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Maredudd Ddu ap Gronwy ap Maredudd.
This relationship is shown by Bartrum (Llywarch ap Brȃn 3) and given by Carr (p. 264).
Mother: Catrin Fechan ferch Cynchwr of Ireland.
This relationship is shown by Bartrum (Llywarch ap Brȃn 3). Bartrum notes that Cynchwr gave his name to Porth Cynchwr, near Porthaml, Menai.
Spouse: Alice ferch Philip ap Maredudd ap Philip ap Maredudd ab Ieuaf ap Cadwgon ap Rhun.
Bartrum (Llywarch ap Brȃn 4) cites Lewys Dwnn (ii.208) for this relationship. He puts brackets around the second “Philip ap Maredudd”.
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.)
Dafydd married Gwerful ferch Iorwerth; also married Gwen ferch Ifor ap Maredudd ab Ifor ap Meurig (ab Ifor ap Meurig) ap Tetwallt.
Angharad married Hywel ap Cynwrig.
References
Bartrum, Peter C., “Llywarch ap Brȃn 4” in An Electronic Version of Welsh Genealogies AD 300-1500.
[The sources that Bartrum cites for Ieuan are: Peniarth 129 (63, 119), copied about 1500 from a 1497 MS by Gutun Owain; Peniarth 127 (55, 118), written by Syr Thomas ap Ieuan ap Deicws between about 1510 and 1523; and Peniarth 128 (769b), “Llyfr Edward ap Roger”, written before 1582.]
Carr, A.D. Medieval Anglesey. (Anglesey Antiquarian Society, 2011 2nd ed.).