Morgan ab Athrwys

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392955961 (February 6, 2023; Anne Brannen, curator)

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392863927 (February 6, 2023; Anne Brannen, curator)

Please see Darrell Wolcott: Beli Mawr and Llyr Llediath in Welsh Pedigrees; http://www.ancientwalesstudies.org/id145.html . (Steven Ferry, Aug 25, 2019)

Please see Darrell Wolcott: Rethinking the Gwent Pedigrees; http://www.ancientwalesstudies.org/id24.html. (Steven Ferry, February 20, 2020.)

Please see Darrell Wolcott: The Father of Tewdrig of Gwent; http://www.ancientwalesstudies.org/id27.html. (Steven Ferry, February 22, 2020.)

Please see Darrell Wolcott: Another Look at Teithfallt of Gwent; http://www.ancientwalesstudies.org/id168.html. (Steven Ferry, February 25, 2020.)

Please see Darrell Wolcott: Two Families Headed by a Rhydderch ap Iestyn; http://www.ancientwalesstudies.org/id212.html. (Steven Ferry, July 18, 2020.)

Please see Darrell Wolcott: The Conquest of Glamorgan - Further Notes; http://www.ancientwalesstudies.org/id226.html. (Steven Ferry, August 20, 2020.)

Please see Darrell Wolcott: The Ancestry of Iestyn ap Gwrgan; http://www.ancientwalesstudies.org/id227.html. (Steven Ferry, August 21, 2020.)

Please see Darrell Wolcott: Harleian Ms 3859; http://www.ancientwalesstudies.org/id129.html. (Steven Ferry, March 11, 2021.)