Ieuaf ap Llywarch

See Peter Bartrum. https://www.geni.com/documents/view?doc_id=6000000173393013948 (April 30, 2023; Anne Brannen, curator)

See Darrell Wolcott, "The Pedigree of Cynddelw Gam," http://www.ancientwalesstudies.org/id94.html for untangling and clarification of these lines. (April 12, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#270] (Steven Ferry, December 5, 2017.)

Please see Darrell Wolcott: Ancestry of Ieuaf ap Adda ap Awr of Trevor; http://www.ancientwalesstudies.org/id57.html. (Steven Ferry, July 4, 2020.)

Please see Darrell Wolcott: The Unknown Cadwgan; http://www.ancientwalesstudies.org/id246.html. (Steven Ferry, November 20, 2020.)