Trahaearn ap Iorwerth, Lord of Garthmyl

He served as a captain in Gwenwynwyn's warband, for which he was granted Garthmyl, in Cydewain.

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 17, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: Pedigree of "Ednowain Bendew II"; http://www.ancientwalesstudies.org/id92.html, [#86] (Steven Ferry, November 6, 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: Bartrum's "Pedigrees of the Welsh Tribal Patriarchs" #20 Meilyr Gryg; http://www.ancientwalesstudies.org/id190.html. (Steven Ferry, September 24, 2019.)

Please see Darrell Wolcott: The Royal Family of Powys - The First Meilyr Gryg of Gregynog; http://www.ancientwalesstudies.org/id73.html. (Steven Ferry, November 16, 2019.)

Please see Darrell Wolcott: The Royal Family of Gwynedd - Gwron, Son of Cunedda; http://www.ancientwalesstudies.org/id63.html. (Steven Ferry, November 25, 2019.)

Please see Darrell Wolcott: The Shropshire Walcot Family - Chart I: The Welsh Walcot Family; http://www.ancientwalesstudies.org/id100.html. (Steven Ferry, April 22, 2020.)

Please see Darrell Wolcott: The Shropshire Walcot Family; http://www.ancientwalesstudies.org/id58.html. (Steven Ferry, May 1, 2020.)

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

Please see Darrell Wolcott: Trahaearn Goch of Lleyn; http://www.ancientwalesstudies.org/id119.html. (Steven Ferry, August 18, 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; [#40;48;118]. (Steven Ferry, June 21, 2021.)

Please see Darrell Wolcott: Madog Danwr, Lord of Llangurig Parish; http://www.ancientwalesstudies.org/id285.html. (Steven Ferry, November 19, 2021.)

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173392989907 Trahearn ap Caradog 6 (December 27, 2023; Anne Brannen, curator)