St. Einion, King of Lleyn
Einion, Owain Danwyn (White-Tooth)'s second son, appears to have managed to persuade his cousin, King Maelgwn Gwynedd, to allow him to rule the old sub-kingdom of Afflogion after his father's murder. He extended his Kingdom to cover the whole of the Lleyn Peninsula. Little is known of Einion's life, though he was certainly a patron of the church. In the early 6th century, he became the joint-founder of Penmon Priory on Ynys Mon (Anglesey) and, soon afterward, he persuaded St. Cadfan to help him build the first monastery on Ynys Enlli (Bardsey Island). This activity appears to have gained Einion a reputation as a saint. His memorial can be seen at the Church of Llanengen Church in Gwynedd, which is dedicated to him.