Clement-Jones family - Person Sheet
Clement-Jones family - Person Sheet
Hereditary Tywysog of Powys Fadog and Lord of Glyndyfrdwy.

The epithet 'Fychan' implies that his father was also called Gruffudd. However certain genealogical tables convey conflicting data. It has been thought that he was the son of Madog Crypl who died in 1304. However, for him to inherit the succession and hold it until 1369 seems unlikely. Other tables suggest his father was Gruffudd ap Madog Fychan, a son of Madog Fychan.

Most probably, he was the grandson of Madog Crypl, whose son Gruffudd was aged about six at his father's death, but already married. Gruffudd was still alive in 1343.
Gruffudd Fychan II was married to Elen, daughter of Thomas ap Llywelyn lord of half of the commote of Is Coed and of quarter of Gwynionydd, both in Ceredigion.

They had issue:

Madog, died young
Owain ap Gruffudd, later known as Owain Glyndŵr, proclaimed Prince of Wales and leader of the Welsh revolt in September 1400 which lasted to 1412 or 1416. He married Margaret Hanmer, daughter of Sir David Hanmer and had issue.
Lowry, married Robert Puleston, and had issue.
Isabel ferch Gruffudd, married Adda ap Iorwerth Ddu, and had issue.
Tudur ap Gruffudd, Lord of Gwyddelwern

He was buried at the Church of St. Asaph & St Cyndeyrn in Llanasa where the remains of his tomb can be seen toda
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