![](https://assets12.geni.com/images/external/twitter_bird_small.gif?1711387293)
![](https://assets11.geni.com/images/facebook_white_small_short.gif?1711387293)
public profile
See Peter Bartrum, http://cadair.aber.ac.uk/dspace/bitstream/handle/2160/5569/Bleddyn%... (January 9, 2017; Anne Brannen, curator)
Please see Peter Bartrum: Rhirid ap Rhiwallon 2; https://www.geni.com/documents/view?doc_id=6000000173393115902 & Bleddyn ap Cynfyn 10; https://www.geni.com/documents/view?doc_id=6000000173378457897 (Steven Ferry, March 29, 2024.)
Please see Darrell Wolcott: Rhiryd ap Rhiwallon - Who Was He?; http://www.ancientwalesstudies.org/id323.html (Steven Ferry, March 29, 2024.)