In search of warmer land to accommodate their growing population, the Norse Vikings made their way into Ireland during the mid-ninth century.
Sedulius also wrote to other prominent figures of his time, including Empress Ermengarde, King Louis, and Charles the Bald.
It appears from the manuscript records of the 9th century that there was a teacher at St. Lambert, Liège, who was known as Sedulius Scotus, and was a scribe and a poet.
[4] Aside from Christian literature and Biblical commentary, Sedulius held a passion for alcoholic beverages, especially beer.
[citation needed] In his Collectanea he included a copy of the Irish Proverbia Grecorum, a collection of secular wisdom sayings.
[7] Sedulius Scottus was very interested in the spiritual formation of the royal leaders, asserting that they should possess knowledge to lead both clergy and council.
[8] Sedulius's work shows, among other traits, a deep moral feeling, a realisation of the fact that the mission of the state is neither purely economic on the one hand nor exclusively ecclesiastical, on the other.
He is not on the side of those who, seeing in Charlemagne the ideal of a pontiff and ruler in one person, were in favour of the idea that the prince should, in fact, be supreme in matters religious.
On the contrary, he is in favour of a division of temporal and spiritual powers and requires of the prince a careful observance of the Church's rights and privileges.
Among his work, a mock epic is preserved known as De Quodam Verbece a Cane Discerpto or in English, "On a Ram Torn to Pieces by a Dog".
His poems, to the number of ninety, are published by Traube in the Poetae Aevi Carolini, which is a portion of the Monumenta Germaniae Historica.