Alison verch Trahaearn

See Darrell Wolcott, http://www.ancientwalesstudies.org/id94.html, for untangling of these lines. (February 2, 2016; Anne Brannen, curator)

Please see Darrell Wolcott: The Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#51] (Steven Ferry, November 17, 2017.)

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #20 Meilyr Gryg; http://www.ancientwalesstudies.org/id190.html. (Steven Ferry, September 24, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - The First Meilyr Gryg of Gregynog; http://www.ancientwalesstudies.org/id73.html. (Steven Ferry, November 16, 2019.)