Hydd Hwgan ap Gwenddy

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #15 Maenyrch; http://www.ancientwalesstudies.org/id183.html. (Steven Ferry, September 21, 2019.)

Please see Darrell Wolcott: Rulers of Brycheiniog - The Unanswered Questions; http://www.ancientwalesstudies.org/id161.html. (Steven Ferry, March 17, 2020.)

Please see Darrell Wolcott: Welshmen Named Maenyrch; http://www.ancientwalesstudies.org/id310.html (Steven Ferry, January 23, 2023.)