Duling ap Gruffydd

Please see Darrell Wolcott: The Royal Family of Gwynedd - The Children of Gruffudd, Nephew of Iago; http://www.ancientwalesstudies.org/id80.html, for a detailed look at the trees for BOTH Gruffudd(s) ap Cynan. "Duling, cited as a priest and teacher and the father of Thomas.  His mother is not identified nor is his wife.  He might have been a son of either man called Gruffudd ap Cynan." (Steven Ferry, December 13, 2019.)

Please see Darrell Wolcott: Henry, the Forgotten Son of Cadwgan ap Bleddyn; http://www.ancientwalesstudies.org/id117.html. (Steven Ferry, April 6, 2020.)