Saint Mydan was a legendary pre-congregational saint of medieval Wales known from only one seventeenth century manuscript. He was reputedly the son of Pasgen ab Urien Rheged, and brother of Saint Gwrfyw.The lives of the British saints; the saints of Wales and Cornwall and such Irish saints as have dedications in Britain,(The Honourable Society of Cymmrodorion, 1911) vol 3.
He was a Saint of Cor Catwg, at Llancarfan. He had a brother, Saint Gwrfyw,S. Baring-Gould M.A., & John Fisher, B.D., The lives of the British saints; the saints of Wales and Cornwall and such Irish saints as have dedications in Britain, (The Honourable Society of Cymmrodorion, 1911) vol 3. who was the father of S. Nidan. It is quite possible that Mydan is a misreading for Nidan.
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