 Æthelbert ( sometimes Æthelberht , Albert , Ælberht , Aethelberht , or Ælbert ; 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 rebuilt the cathedral and sent missionaries to the Continent . Æthelbert retired before his death , and during his retirement built another church in York . 
