Iago ab Einion

Please see Darrell Wolcott: The Childrn of Owain Gwynedd; http://www.ancientwalesstudies.org/id302.html (Steven Ferry, September 11, 2022.)

Please see Darrell Wolcott: Hwfa ap Cynddelw, Lord of Llifon: http://www.ancientwalesstudies.org/id322.html (Steven Ferry, February 8, 2024.)

Please see Peter Bartrum: Gruffudd ap Cynan 16; https://www.geni.com/documents/view?doc_id=6000000173392989823 (Steven Ferry, February 8, 2024.)