Donatus was born in Ireland to noble parents towards the end of the eighth century. Despite there being little biographical detail in the tenth/eleventh-century
Vita sancti Donati episcopi, Donatus is one of the better documented of the Irish
peregrini. According to
William Turner, writing in the
Catholic Encyclopedia, in an ancient collection of the
Vitae Patrum, of which an eleventh-century copy exists in the Laurentian Library of
Florence, there is an account of the life of Donatus, which states that about 816 Donatus visited the tombs of the
Apostles in Rome with his friend,
Andrew Scotus. They remained in Rome for a considerable time and then set out once more, directing their steps now towards Tuscany, till at length they reached Fiesole, where they entered the hospice of the monastery, intending to rest there for a week or two, and then to resume their journey. When Donatus entered the
Cathedral of Saint Romulus, the bells spontaneously began ringing and the candles lit. The people took that for a sign their prayers had been heard. It is also possible that no locals wanted the position, given the fate of its previous incumbent. Donatus made Andrew his archdeacon. He encouraged Andrew to restore the church of San Martino di Mensola and to found a monastery there. Donatus founded a school in Florence under the patronage of
Lothair, where he taught grammar and metrical composition for many years. Also in 850, he gave the Church of St. Brigid at Piacenza to Columbanus' abbey at Bobbio, The church of Fiesole had suffered much in its property and prerogatives from the emperors, and the Normans had destroyed its charters. Donatus applied for redress to the emperor Louis, who in 866 granted his request. A confirmation of this grant was obtained subsequently by Donatus from Charles the Bald at Placentia, with the condition annexed that anyone who infringed it should pay the church thirty pounds of gold. In it he alludes to his birth in Ireland, his years in the service of the princes of Italy (
Lothair and
Louis), his episcopate at Fiesole, and his activity as a teacher of
grammar and poetry. ==Works==