 Æthelbert , was the teacher and intimate friend of Alcuin , whose poem on the saints and prelates of the Church of York , Versus de <unk> <unk> et de Sanctis et <unk> <unk> <unk> , 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 's family placed him in a monastery as a young child , where he was a pupil in the school founded at York by Ecgbert . Ecgbert ordained Æthelbert as a priest put him in charge of the school . 
