Alison verch Rhiwallon Fychan

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173393022984 (April 19, 2023; Anne Brannen, curator)

See Darrell Wolcott, "The Pedigree of Cynddelw Gam," http://www.ancientwalesstudies.org/id94.html for untangling and clarification of these lines. (January 21, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#118] (Steven Ferry, November 22, 2017.)

Please see Peter Bartrum: Morgan Hir 1; https://www.geni.com/documents/view?doc_id=6000000173392691903 & Tudur Trefor 35; https://www.geni.com/documents/view?doc_id=6000000173393259932 (Steven Ferry, May 25, 2024.)