Ednyfed ap Idnerth

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: The Unofficial "History" of Elystan of Powys; http://www.ancientwalesstudies.org/id230.html. (Steven Ferry, August 12, 2020.)

Please see Peter Bartrum: Elystan Glodrydd 42; https://www.geni.com/documents/view?doc_id=6000000173390770853 (Steven Ferry, February 14, 2021.)

Please see Darrell Wolcott: The Family of Caradog ap Rhys Gryg; http://www.ancientwalesstudies.org/id328.html (Steven Ferry, February 6, 2025.)