Madog Crypl
Madog Crypl (or Madog Crippil), also known as Madog ap Gruffydd Fychan (c. 1275–1304/6) was a descendant of the sovereign Princes of Powys Fadog and Lords of Dinas Bran. He is sometimes described as Madog III of Powys Fadog. However, he was only lord of some of the family lands under the English crown.
He was still a child at the death of his father, Prince Gruffydd Fychan in 1289, so that the lands were placed in the custody of the queen and then of Reginald de Grey, Justice of Chester and then Thomas of Macclesfield. Madog ap Gruffydd asked the king for a suitable provision to be made for him, and seems to have been granted his father's lands. These apparently consisted of Glyndyfrdwy and half of the commote of Cynllaith, comprising the area around Sycharth.
Madog married Gwenllian, daughter of Ithel Fychan of Halkin and had a son Gruffydd of Rhuddallt, who was married on 8 July 1304 at the age of six to Elizabeth, daughter of John LeStrange of Knockin.