Ethyllt ferch Cynan explained

Ethyllt ferch Cynan, also known as Esyllt ferch Cynan Dindaethwy, was the daughter of King Cynan Dindaethwy ap Rhodri of Gwynedd.^[1]

Marriage

In 768 she was married to Gwriad ap Elidyr.^[2] It is possible this was a later invention to legitimise the claims to Gwynedd of the descendants of Merfyn Frych; according to some source Merfyn was her son, in others he was her husband and Esyllt was the mother of Rhodri Mawr.^[3] After the death of her father in 816, the throne was secured by her uncle Hywel ap Rhodri Molwynog.

Notes and References

1. Book: Maund, K. L. . Gruffudd Ap Cynan: A Collaborative Biography . 1996 . Boydell & Brewer . 978-0-85115-389-6 . 84 . en.
2. Book: Brady, Lindy . The Origin Legends of Early Medieval Britain and Ireland . 2022-08-04 . Cambridge University Press . 978-1-009-22565-6 . 151–152 . en.
3. Book: Thornton, David E. . Kings, Chronologies, and Genealogies: Studies in the Political History of Early Medieval Ireland and Wales . 2003 . Occasional Publications UPR . 978-1-900934-09-1 . 87–98 . en.