Gruffudd IV ap Beli IV

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#265] (Steven Ferry, December 4, 2017.)

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #18 Maredudd Benwyn; http://www.ancientwalesstudies.org/id188.html. NOTE: the use of a numeral in a name is not found in the Welsh, but is merely a method of identifying and separating men with the same name, in the same string of names, which is common to the Welsh. In this particular tree there are four repetitions of the name string. (Steven Ferry, September 23, 2019.)

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #21 Gwenwys or Cadwgan Wenwys; http://www.ancientwalesstudies.org/id191.html. (Steven Ferry, September 28, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - End of the Powys Dynasty; http://www.ancientwalesstudies.org/id14.html. (Steven Ferry, October 18, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - Powys Dynastic Family 945-1385; http://www.ancientwalesstudies.org/id20.html. (Steven Ferry, October 19, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - The "Mael Maelienydd" in Medieval Pedigrees; http://www.ancientwalesstudies.org/id76.html. (Steven Ferry, October 22, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - Gwrgi of Castell Caereinion; http://www.ancientwalesstudies.org/id77.html. (Steven Ferry, November 13, 2019.)

Please see Darrell Wolcott: The Shropshire Walcot Family- Chart III: First Powys Dynasty; http://www.ancientwalesstudies.org/id98.html. (Steven Ferry, May 17, 2020.)

Please see Darrell Wolcott: Welsh Claims to Ceri after 1179; http://www.ancientwalesstudies.org/id69.html. (Steven Ferry, July 6, 2020.)

Please see Darrell Wolcott: The 5 Dafydd Llwyds of Llanwrin Parish; http://www.ancientwalesstudies.org/id254.html. (Steven Ferry, February 12, 2021.)

Please see Darrell Wolcott: Pedigree of Madog ap Idnerth; http://www.ancientwalesstudies.org/id267.html; [#62]. (Steven Ferry, June 14, 2021.)