Robert ap Llywarch, Lord of Cydewain

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392989907 Trahearn ap Caradog 6 (December 26, 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 17, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: The Welsh Ancestry of the Tudor Dynasty; http://www.ancientwalesstudies.org/id217.html. (Steven Ferry, July8, 2017.)

Please see Darrell Wolcott: The Pedigree of Cynddelw Gam of Ystrad Alun; http://www.ancientwalesstudies.org/id94.html; [#51] (Steven Ferry, November 17, 2017.)

Please see Darrell Wolcott: The Shropshire Walcot Family - Chart IV: Arwystli Dynasty; http://www.ancientwalesstudies.org/id95.html. (Steven Ferry, May 23, 2020.)

Please see Darrell Wolcott: The Shropshire Walcot Family - Chart V: The Buellt/Fferlys Dynasty; http://www.ancientwalesstudies.org/id96.html. (Steven Ferry, May 24, 2020.)

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

Please see Darrell Wolcott: Maredudd ap Robert, Lord of Cedewain; http://www.ancientwalesstudies.org/id67.html. (Steven Ferry, July 12, 2020.)

Please see Darrell Wolcott: The "Sons" of Owain ap Cadwgan ap Bleddyn; http://www.ancientwalesstudies.org/id159.html. (Steven Ferry, August 15, 2020.)

Please see Darrel Wolcott: The Family of Trahaearn ap Caradog; http://www.ancientwalesstudies.org/id240.html. (Steven Ferry, August 29, 2020.)

Please see Darrell Wolcott: Pedigree of Madog ap Idnerth; http://www.ancientwalesstudies.org/id267.html; [#1]. (Steven Ferry, May 13, 2021.)

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