Dafydd ap Llewelyn Hirfain

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392980933 Trahaearn ap Caradog 3 (November 27, 2023; Anne Brannen, curator)

Please see Darrell Wolcott: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #19 Gruffudd Fraslwyd; http://www.ancientwalesstudies.org/id189.html. (Steven Ferry, September 24, 2019.)

Please see Peter Bartrum: Gruffudd Fraslwyd; https://www.geni.com/documents/view?doc_id=6000000173392923843 & Trahaearn ap Caradog 3; https://www.geni.com/documents/view?doc_id=6000000173392980933 & Adda of Mochnant 4; https://www.geni.com/documents/view?doc_id=6000000173378408990 [NOTE: Bartrum charts a second wife, Mallt ferch Gruffudd Wyn, but that woman married this man's grandson, Dafydd ap Llewelyn (Steven Ferry, October 2, 2023.)

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5190/CYDIFOR... (February 18, 2021; Anne Brannen, curator)