Rhiwallon Fychan ap Rhiwallon

See Darrell Wolcott, "The Pedigree of Cynddelw Gam," http://www.ancientwalesstudies.org/id94.html for untangling and clarification of these lines. (January 21, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#118] (Steven Ferry, November 22, 2017.)

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; [#69;109]. (Steven Ferry, June 19, 2021.)

Please see Peter Bartrum: Morgan Hir 1; https://www.geni.com/documents/view?doc_id=6000000173392691903 (Steven Ferry, May 25, 2024.)