Rhys Fychan/ Mechyll ap Rhys Gryg, Lord Dynevor

Please see Darrell Wolcott: The Ancestry of Owain Glyndwr; http://www.ancientwalesstudies.org/id200.html. (Steven Ferry, September 13, 2020.)

Please see Darrell Wolcott: The Children of Lord Rhys; http://www.ancientwalesstudies.org/id187.html. (Steven Ferry, September 15, 2020.)

Please see Darrell Wolcott: Maredudd Gethin ap Lord Rhys; http://www.ancientwalesstudies.org/id213.html. (Steven Ferry, September 17, 2020.)

Please see Darrell Wolcott: Cynwrig ap Rhiwallon; http://www.ancientwalesstudies.org/id293.html (Steven Ferry, May 8, 2022.)

Please see Peter Bartrum: Rhys ap Tewdwr 8; https://www.geni.com/documents/view?doc_id=6000000173393022947 (Steven Ferry, November 23, 2024.)

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Rhys Mechyll (died 1244) was a Welsh prince of the House of Dinefwr, ruler of part of the kingdom of Deheubarth in southern Wales from 1234 to 1244. He was a son of Rhys Gryg (died 1234) ("Rhys the Hoarse"), son of Rhys ap Gruffydd (1132–1197),"The Lord Rhys", ruler of the kingdom of Deheubarth.

He married Matilda de Braose (died 1248) who betrayed the dynasty's chief castle of Carreg Cennen to the Anglo-Normans in 1248, against the interests of her son Rhys. A Welsh chronicle, the Brut y Tywysogyon, records under the year 1248: "Rhys Fychan ap Rhys Mechyll regained the castle of Carreg Cennen, which his mother had treacherously placed in the power of the French, out of enmity for her son."

He had a son Rhys Fychan (i.e. "The Younger") ap Rhys Mechyll, and a daughter Gwenllian, his eventual heiress who married Gilbert Talbot (died 1274), grandfather of Gilbert Talbot, 1st Baron Talbot (died 1345/6), to whom passed the ancient armorials of the House of Dinefwr, assumed as arms of alliance to a great princess in place of his own paternal arms.

Please see Darrell Wolcott: The Children of Lord Rhys; http://www.ancientwalesstudies.org/id187.html. (Steven Ferry, July 9, 2017.)

Please see Darrell Wolcott: Maredudd Gethin ap Lord Rhys; http://www.ancientwalesstudies.org/id213.html. (Steven Ferry, July 12, 2017.)

Please see Darrell Wolcott: The Ancestry of Owain Glyndwr; http://www.ancientwalesstudies.org/id200.html. (Steven Ferry, September 13, 2020.)