Gwgan Blaidd Gwyrdd ap Bleddyn

Known as Gwgan Blaidd Gwyrdd (Steven Ferry, January 21, 2020)

See Peter Bartrum, https://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5266/bleddyn... (August 13, 2017; Anne Brannen, curator)

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

Please see Darrell Wolcott: Pedigree of Madog ap Idnerth; http://www.ancientwalesstudies.org/id267.html; [#59]. (Steven Ferry, June 12, 2021.)

Please see Darrell Wolcott: Welshmen Named Maenyrch; http://www.ancientwalesstudies.org/id310.html (Steven Ferry, January 23, 2023.)

Please see Darrell Wolcott: Bleddyn ap Maenyrch, King of Brycheiniog; http://www.ancientwalesstudies.org/id313.html (Steven Ferry, March 2, 2023.)

Please see Darrell Wolcott: Family of Drymbenog ap Maenyrch of Brycheiniog; http://www.ancientwalesstudies.org/id312.html (Steven Ferry, May 22, 2023.)

Please see Darrell Wolcott: Gwgan ap Llewelyn ap Moriddig of Brycheiniog; http://www.ancientwalesstudies.org/id315.html (Steven Ferry, June 25, 2023.)

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

Please see Darrell Wolcott: How Bartrum 'Lost' Hywel ap Gruffudd ap Ifor Bach; http://www.ancientwalesstudies.org/id317.html (Steven Ferry, August 9, 2023.)