Iorwerth ap Ieuaf

See Peter Bartrum. https://www.geni.com/documents/view?doc_id=6000000173393013948 (April 30, 2023; Anne Brannen, curator)

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/4933/Tudur%2... (August 12, 2020; Anne Brannen, curator)

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/4792/Iestyn%... (January 22, 2020; Anne Brannen, curator)

See Darrell Wolcott, the Pedigree of Cynddelw Gam, for the untangling of these lines: http://www.ancientwalesstudies.org/id94.html (February 26, 2016; Anne Brannen, curator).

Please see Darrell Wolcott: Ancestry of Ieuaf ap Adda ap Awr of Trevor; http://www.ancientwalesstudies.org/id57.html. (Steven Ferry, July 4, 2020.)

Please see Darrell Wolcott: Cadafael Ynfyd of Cydewain; http://www.ancientwalesstudies.org/id150.html. (Steven Ferry, July 10, 2020.)

Please see Darrell Wolcott: Hywel ap Maredudd ap Bleddyn; http://www.ancientwalesstudies.org/id295.html. (Steven Ferry, August 18, 2022.)