"Raban Maur (left), supported by Alcuin (middle), dedicates his work to Archbishop Otgar of Mainz (Right); Carolingian Manuscript"
Alcuin was an Englishman who, after a period as monk and teacher at the great cathedral of York, served at the court of Charlemagne, whom he had met while returning from a visit to Rome. The Emperor recruited him to his court specifically because he recognised in him the potential to achieve a renaissance of learning and church reform. Note that the widely reproduced picture of him above, as well as another extant painting, shows him presenting books of learning.
We usually think of the "renaissance", as a rediscovery of classical thought, as dating from several centuries later, but in many respects he was an early precursor.