Events
Date of Birth: unknown.
Place of Birth: unknown.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Cynan ap Maredudd ab Owain.
This relationship is shown by Bartrum (Rhys ap Tewdwr 6). His sources are from the 1500s.
Mother: unknown.
(supposed) Spouse: Sir Gruffudd Llwyd.
This relationship is shown by Bartrum (Marchudd 17; Rhys ap Tewdwr 6), citing later heraldic pedigrees. It is also given by Edwards, by Carr, and by Bridgeman (p. 232 fn). Bridgeman (p. 221) states that he considers the marriage to be “somewhat problematical”.
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 and Bridgeman.)
Gwenllian married Cadwgon ap Hywel of Melienith.
Teili married Madog Gloddaith. Teili seems to have inherited Tregarnedd.
Philippa married Bleddyn ab Ithel Fychan of Tegengl.
Elsbeth married Y Giwn Llwyd of Hendonr.
Crisli married Dafydd Fongam.
Cecily married Robert Clement.
References
Bartrum, Peter C., “Marchudd 17”, “Rhys ap Tewdwr 6” in An Electronic Version of Welsh Genealogies AD 300-1500. [The sources that Bartrum cites for Gwenllian are: Peniarth 131 (65), written early in the reign of Henry VIII; Peniarth 137 (173), by Syr Thomas ab Ieuan ap Deiews, written about 1510-1523; Peniarth 128 (830a), “Llyfr Edward ap Roger”, written before 1582; Peniarth 176 (355), Peniarth 134 (147), and Peniarth 135 (338) by Gruffudd Hiraethog (died 1564); and Peniarth 139 part 1 (80), parts written by Gruffudd Hiraethog.]
Bridgeman, George T.O. History of the Princes of South Wales (Wigan: Thomas Birch, 1876).
Carr, Antony David. The Mostyn Family and Estate, 1200-1643 (PhD thesis, University of Wales, 1975).
Edwards, Sir John Goronwy. “Gruffudd Llwyd, Sir” in Welsh Biography Online.
Edwards, Sir John Goronwy. “Sir Gruffydd Llwyd” in The English Historical Review volume XXX, pp. 589-601 (1915).