Æthelbert (died 8 November 780) was an eighth-century scholar, teacher, and Archbishop of York. Related to his predecessor at York, he became a monk at an early age and was in charge of the cathedral's library and school before becoming archbishop. He taught a number of missionaries and scholars, including Alcuin, at the school. While archbishop, Æthelbert sent missionaries to the Continent. Æthelbert retired before his death, and during his retirement consecrated another church in York.
Early life
Æthelbert was the teacher and intimate friend of Alcuin, whose poem on the saints and prelates of the Church of York, Versus de Patribus Regibus et de Sanctis et Pontificibus Ecclesiæ Eboracensis, is the principal source of information concerning Æthelbert's life. He was a kinsman of his predecessor Ecgbert, who was brother to Eadberht, King of Northumbria.
Æthelbert was instrumental in forming a library at York, which was probably the largest contemporary collection of books to be found in Europe outside of Rome. Alcuin mentions several Latin and Greek classical authors, as well as the Fathers and other Christian writers that formed the 8th century canon. Æthelbert, in his search for books, travelled far, and we know that he visited Rome among other places. He taught both the trivium as well as the quadrivium, plus how to figure the dates of church festivals and natural science. the feast day of his predecessor Wilfrid. This may have been deliberate and a sign that Æthelbert wished to revive Wilfrid's ambitions for the archiepiscopal see. Æthelbert received his pallium from Pope Adrian I in 773.
Æthelbert also commissioned Eanbald and Alcuin the job of overseeing the construction of a new church in York, the basilica of Alma Sophia, the Church of Holy Wisdom. It was possibly modelled on the Frankish royal chapel of Aachen, or the rotunda of San Vitale in Ravenna. According to Alcuin, Alma Sophia was lofty, supported by many columns and arches, with inlaid ceilings and glazed windows. The core church was surrounded by chapels and galleries, and it boasted thirty altars. Alma Sophia was never mentioned again in written records, and no remains have ever been found. Academic debate is split on whether it was next door to the pre-Norman Conquest cathedral, or whether it was elsewhere in the city, perhaps across the river Ouse: possible sites include Bishopshill, or Holy Trinity, Micklegate.
Æthelbert sent out missionaries to the pagans of Northern Europe, among them Alubert and Liudger, who went to northern Germany. Liudger had earlier been a pupil at the school in York, and went on to become the first Bishop of Munster. Æthelbert was the recipient of letters from one of the missionaries – Lull, the Archbishop of Mainz, assuming that Lull's correspondent "Coena", who is an archbishop and who was being asked for the works of Bede, is actually Æthelbert,