Ieuaf ap Llewelyn

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5592/Bleddyn... (January 20, 2017; Anne Brannen, curator)

See Darrell Wolcott, the Pedigree of Cynddelw Gam, for the untangling of these lines: http://www.ancientwalesstudies.org/id94.html (March 1, 2016; Anne Brannen, curator).

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#204] (Steven Ferry, November 29, 2017.)

Please see Darrell Wolcott: The Welsh Ancestry of the Tudor Dynasty; http://www.ancientwalesstudies.org/id217.html. (Steven Ferry, April 8, 2020.)

Please see Peter Bartrum: Mael Maelienydd 1; https://www.geni.com/documents/view?doc_id=6000000173393013897 & Bleddyn ap Cynfyn 17; https://www.geni.com/documents/view?doc_id=6000000173378121007 [ Bartrum has his wife as a daughter of C. 1235 Iorwerth ap Griffri, but that is not chronologically possible] (Steven Ferry, March 2, 2024.)