Iorwerth ap Madog of Penllyn ¹

   Another name for Iorwerth was Iorwerth of Penllyn.

  Research Notes:

From History of Powys Fadog, vol. 6, p. 120:
"Iorwerth ab Madog of Penllyn had issue, by his wife Gwervyl, three sons--1, Madog, of whom presently; 2, Gruffydd; and 3, Iorwerth Vychan; and of the daughters, Gwenllian married Llewelyn ab Itel of Aelhaiarn in Glyndyvrdwy, and Darwen Ynial, son of Heilin ab Eunydd, Lord of Dyffryn Clwyd, and Maude married Goronwy ab Tudor ab Goronwy ab Ednyved Vychan."

Iorwerth married Gwervyl verch Cynwrig ap Pasgen, daughter of Cynwrig ap Pasgen ap Gwyn and Unknown.