Rhys ap Gwerystan

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/6516/TABLES%... (May 31, 2018; Anne Brannen, curator)

See Lloyd, "The History of the Lords Marcher," 1884, Whiting and Co. vol IV, p. 116. His information is taken from Harley MS 4181.

See also Darrell Wolcott, "The Pedigree of Cynddelw Gam," http://www.ancientwalesstudies.org/id94.html for untangling and clarification of these lines. (January 16, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: The Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#22] (Steven Ferry, November 14, 2017.)

Please see Darrell Wolcott: The Men of Pennant Melangell in Mochnant; http://www.ancientwalesstudies.org/id289.html. (Steven Ferry, February 8, 2022.)

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