Marianus Scotus of Regensburg,[1] born Muiredach mac Robartaig,[2] was an Irish abbot and scribe.
Like many of his countrymen, however, who visited the Continent, he decided to settle in Germany, at Bamberg, where he became a Benedictine monk.
His success as a scribe, and the exceptional beauty of his calligraphy may be judged by a specimen of his work which has come down to us.
This is Codex 1247 of the Imperial Library of Vienna containing the Epistles of St. Paul with glosses, some of which are in Latin and others in Irish.
The manuscript ends with the words "In honore individuae trinitatis Marianus Scotus scripsit hunc librum suis fratribus peregrinis…" (the date given is 16 May 1078).