Llewelyn ap Gruffudd

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173378457901 (May 6, 2017; Anne Brannen, curator)

Bartrum also charts this Llewelyn ap Gruffudd de la Pole ap Gwenwynwyn Cyfeiliog ap Gwenwynwyn as the husband of Margred ferch Maredudd Goch, but that woman was married to Llewelyn ap Gruffudd ap Gwenwynwyn, and born c. 1240. in a cousin line. Bartrum does not conclude that the mother of Efa ferch Llewelyn was Sibyl de Tuberville. (Steven Ferry, August 3, 2021.).)

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Primary Sources

13 April 1319 Kirkham
Licence for John de Cherleton and Hawisia, his wife, to grant to Master Thomas de Cherleton, king's clerk, their reversions in two parts of the manor of Grenehalle and of the land of Megheyn Ughcoyt, and Moghnanf Ughraider in the Marches of Wales, held in chief, and which Peter Giffard and Ela his wife hold in dower of the said Ela of the inheritance of the said Hawisia, and also of the remaining third part of the said manor and lands, which Sybil, late the wife of Louis de la Pole, holds in dower of the same inheritance ; licence also for the said Thomas to regrant the same reversions to the said John and Hawisia for their lives, with remainder, and to John son of John de Cherleton and Matilda his wife and the heirs of the body of the said John son of John, and failing such issue to Owen (Amheno) son of John de Cherleton and the heirs of his body, to Edward son of John de Cherleton and the heirs of his body, to Humphrey son of John de Cherleton and the heirs of his body and finally to the right heirs of the said Hawisia. By p.s.
Source: Calendar of the patent rolls preserved in the Public Record Office: Edward II, A.D. 1307-1327. Page 327