Trahaearn ap Bod

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #10 Iarddur ap Cynddelw; http://www.ancientwalesstudies.org/id178.html. (Steven Ferry, September 10, 2019.)

Please see Darrell Wolcott: Pedigree of Madog ap Idnerth; http://www.ancientwalesstudies.org/id267.html; [#17]. (Steven Ferry, May 18, 2021.)

Please see Darrell Wolcott: Rhiryd Flaidd, Lord of Penllyn; http://www.ancientwalesstudies.org/id290.html. (Steven Ferry, February 27, 2022.)

Please see Darrell Wolcott: Maelog Crwm of Arllechwedd Isaf and Crueddyn; http://www.ancientwalesstudies.org/id299.html (Steven Ferry, September 3, 2022.)