The early Irish poem Rop tú mo baile, the basis of the modern English hymn Be Thou My Vision, is also sometimes attributed to him.
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He is best known for eulogies attributed to him on the subject of contemporaneous Irish saints, namely the Amra Choluim Chille and Fo réir Coluim cén ad-fías on Saint Columba, Amra Senain on Saint Senan, and Amra Connaill on Saint Connall.