Iorwerth ap Cynwrig Ddewis Herod

See Darrell Wolcott, "The Pedigree of Cynddelw Gam," http://www.ancientwalesstudies.org/id94.html for untangling and clarification of these lines. (January 18, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#71] [#164] (Steven Ferry, November 27, 2017.)

Please see Darrell Wolcott: "Meuter Fawr", Son of Hedd ap Alunog; http://www.ancientwalesstudies.org/id113.html. (Steven Ferry, July 4, 2020.)