Iorwerth Ddu ab Ednyfed Gam ab Iorwerth Foel

Chief forester of the lordship of Chirk (1356)

Rhingyll of Llangollen (1377-1379)

Events

Date of Birth: unknown.

Place of Birth: unknown.

Attested: 1332, 1355, 1356, 1377-1379. 1394.

In 1332, Iorwerth was a juror at an inquisition at Chirk. In 1355, he witnessed a charter of Richard Earl of Arundel at Chirk (Mostyn p. 24). Carr (p. 151) mentions a lease granted by Iorwerth on 30 January 1394.

Date of Death: unknown.

Place of Death: unknown.

Relationships

Father: Ednyfed Gam ab Iorwerth Foel ab Iorwerth Fychan.

This relationship is given by Barrell and Davies (Table B). It is shown by Bartrum (Tudur Trefor 13). It is given by Mostyn (p. 23), by Dwnn (2:308), by Lloyd (4:145), by Carr (1975, p. 17; 2017, p. 140), and by Davies (p. 210). Mostyn (p. 23, citing Add. MS. (B.M.) 15,022, fo. 98 B.) states that a charter of 3 December 29 Edward III (1355) names Ednyfed Gam as the father of Iorwerth (Ddu).

Mother: Gwladus ferch Llywelyn ap Madog.

This relationship is given by Barrell and Davies (Table B). It is shown by Bartrum (Tudur Trefor 13). It is given by Mostyn (p. 23), by Dwnn (2:308), by Lloyd (4:145), and by Carr (1975 p. 369 chart).

Spouse: Angharad ferch Adda Goch ab Ieuaf.

This relationship is shown by Bartrum (Tudur Trefor 13 and Tudur Trefor 3). It is given by Mostyn (p. 24), by Dwnn (2:308), by Lloyd (4:145), and by Carr (1975, p. 24).

Children:

(Complete source citations for facts about the children on this page are currently outside of the scope of this project. The information below comes from Bartrum and Mostyn.)

Adda married Isabel ferch Gruffudd Fychan.

Goronwy.

Tudur.

Ieuan (died 1410, possibly in Rome). Ieuan is said by Mostyn to have joined the church and Anglicised his baptismal name to John Trefor. He became Bishop of St. Asaph; Chancellor of Cheshire, Flintshire, and Carnarvon; Deputy and then Lieutenant to the Prince of Wales. In 1404, he joined Owain Glyn Dŵr. Carr (1975, p. 24) regards this identification as doubtful.

Eva died unmarried.

Margred married Madog ab Ieuan.

Myfanwy married Gronwy ap Tudur.

Morfudd married Dafydd ap Llywarch.

References

Barrell, A.D.M. and Davies, R.R. “Land, lineage and revolt in north-east Wales, 1243-1441: a case study”, Cambrian Medieval Celtic Studies, 29 (1995) pp. 27-52. [Genealogical Tables A and B in this article have been constructed from the court rolls of Dyffryn Clwyd. The authors state that the relationships within the table can be accepted with confidence.]

Bartrum, Peter C., “Tudur Trefor 13”, and “Tudur Trefor 3” in An Electronic Version of Welsh Genealogies AD 300-1500. [The sources Bartrum cites for Iorwerth are: Peniarth 131 (99) -- a MS written about 1480 by Gutun Owain; Peniarth 129 (58, 61, 75) -- a copy made about 1500 of a MS written about 1497 by Gutun Owain; Peniarth 137 (26, 121) -- a MS written in the early 1500s by ‘Syr’ Thomas ap Ieuan ap Deiews.]

Carr, Antony David. The Mostyn Family and Estate, 1200-1643 (PhD thesis, University of Wales, 1975).

Carr, A.D. The Gentry of North Wales in the Later Middle Ages. (University of Wales Press, 2017).

Davies, R.R. The Revolt of Owain Glyn Dŵr. (Oxford U.P., 1995).

Dwnn, Lewys, and Samuel Rush Meyrick. “Moiston Hall”, in Heraldic visitations of Wales and part of the marches between the years 1586 and 1613 by Lewys Dwnn. (Llandovery: William Rees, 1846).

Lloyd, Jacob Youde William. The History of the Princes, the Lords Marcher and the Ancient Nobility of Powys Fodog and the Ancient Lords of Arwystli, Cedewen and Meirionydd. (London: T. Richards, 1881-1887).

Mostyn, the Right Hon. Lord, and T. A. Glenn. History of the Family of Mostyn of Mostyn (London: Harrison and Sons, Ltd., 1925).

Oman, Sandra. “Iorwerth "Ddû" ab Ednyfed "Gam"” in Tree: Wales. Welsh Medieval Database Primarily of Nobility and Gentry.