Cydrich ap Gwaethfoed of Ystrad Tywy

See Darrell Wolcott, http://www.ancientwalesstudies.org/id187.html, "The Children of Lord Rhys," for untangling of these lines. (April 21, 2016, Anne Brannen, curator)

Please see Darrell Wolcott: The Royal Family of Gwynedd - Einion ap Llywarch of Carmarthenshire; http://www.ancientwalesstudies.org/id163.html. (Steven Ferry, January 21, 2020.)

Please see Darrell Wolcott: The Enigmatic Elystan Glodrydd; http://www.ancientwalesstudies.org/id199.html. (Steven Ferry, August 11, 2020.)

Please see Darrell Wolcott: The Conquest of Glamorgan - Einion vs Iestyn ap Gwrgan; http://www.ancientwalesstudies.org/id121.html. (Steven Ferry, August 19, 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: Sorting Out the Gwaithfoeds; http://www.ancientwalesstudies.org/id125.html. (Steven Ferry, September 5, 2020.)

Please see Darrell Wolcott: The Children of Lord Rhys; http://www.ancientwalesstudies.org/id187.html. (Steven Ferry, September 15, 2020.)

Please see Darrell Wolcott: The 'Next Heir' of Morgan of Caerleon; http://www.ancientwalesstudies.org/id214.html. (Steven Ferry, September 18, 2020.)

Please see Darrell Wolcott: Harleian Ms 3859; http://www.ancientwalesstudies.org/id129.html. (Steven Ferry, March 9, 2021.)

Please see Darrell Wolcott: Selyf, "Brennin" Dyfed; http://www.ancientwalesstudies.org/id261.html. (Steven Ferry, March 18, 2021.)

Please see Darrell Wolcott: Family of Drymbenog ap Maenyrch of Brycheiniog; http://www.ancientwalesstudies.org/id312.html (Steven Ferry, May 21, 2023.)

Please see Darrell Wolcott: Ifor Bach, Lord of Senghenydd; http://www.ancientwalesstudies.org/id316.html (Steven Ferry, August 4, 2023.)