Rhiwallon Rwth ap Dryffin

Although no citations name the father of Rhhiwallon Rwth, Wolcott places him as a son of Dryffin ap Maenyrch:
Please see Darrell Wolcott: Rhydderch Ddu of Tal-y-Llyn; http://www.ancientwalesstudies.org/id314.html (Steven Ferry, April 9, 2023.)

Please see Darrell Wolcott: Three Conflated Brecknock Families; http://www.ancientwalesstudies.org/id324.html [Fam2: # 26] (Steven Ferry, October 12, 2024.)