Events
Date of Birth:unknown.
Place of Birth: unknown.
Bartrum gives Gruffudd a number of 10 in his generational dating system, which implies a birth date of, very roughly, about 1330.
Date of Death: unknown.
Place of Death: unknown.
Relationships
Father: Gronwy ap Heilin ap Sir Tudur.
This relationship is shown by Bartrum (Marchudd 5).
Mother: unknown.
Spouse: Dyddgu ferch Robert.
This relationship is shown by Bartrum (Marchudd 5).
Children:
Robin Llwyd married Margred ferch Dafydd.
References
Bartrum, Peter C., “Marchudd 5” in An Electronic Version of Welsh Genealogies AD 300-1500. [The sources that Bartrum cites for Gruffudd are: Peniarth 131 (74), written by Gutun Owain about 1480; Peniarth 131 (49), written early in the reign of Henry VIII; Peniarth 128 (282b, 597a), “Llyfr Edward ap Roger”, written before 1582; and Peniarth 133 (30) and Peniarth 176 (355) by Gruffudd Hiraethog (died 1564).]