Ithel ap Rhirid

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5092/bleddyn... (December 24, 2016; Anne Brannen, curator)

See Lloyd, "The History of the Lords Marcher," 1884, Whiting and Co. vol IV, p. 102. His information is taken from Harley MS 4181.

Please see Darrell Wolcott: Edwin of Tegeingl and His Family - Uchdryd ap Edwin - the Younger Son; http://www.ancientwalesstudies.org/id86.html. (Steven Ferry, June 11, 2020.)

Please see Darrell Wolcott: The Brief Life of Gruffudd ap Maredudd; http://www.ancientwalesstudies.org/id81.html. (Steven Ferry, July 25, 2020.)

Please see Darrell Wolcott: Marchweithian of Is Aled - Further Notes; http://www.ancientwalesstudies.org/id318.html. (Steven Ferry, September 9, 2023.)