Einion ap Cadwgan

See Peter Bartrum, https://www.geni.com/documents/view?doc_id=6000000173377939948 (June 19, 2017; Anne Brannen, curator)

Please see Darrell Wolcott: Henry, the Forgotten Son of Cadwgan ap Bleddyn; http://www.ancientwalesstudies.org/id117.html. (Steven Ferry, April, 5, 2020.)

Please see Darrell Wolcott: Edwin of Tegeingl and His Family - Uchdryd ap Edwin - the Younger Son; http://www.ancientwalesstudies.org/id86.html. (Steven Ferry, June 11, 2020.)

Please see Darrell Wolcott: The Brief Life of Gruffudd ap Maredudd; http://www.ancientwalesstudies.org/id81.html. (Steven Ferry, July 25, 2020.)

Please see Darrell Wolcott: Einion ap Celynin of Llwydiarth; http://www.ancientwalesstudies.org/id138.html. (Steven Ferry, August 25, 2020.)

Bartrum gives death year as 1124, but ByT gives it as 1121. (Steven Ferry, January 6, 2022.)

Please see Darrell Wolcott: The Lineage of Pebid Penllyn; http://www.ancientwalesstudies.org/id288.html. (Steven Ferry, January 7, 2022.)