 Israel the Grammarian ( c . 895 – c . 965 ) was one of the leading European scholars of the mid @-@ tenth century . In the 930s , he was at the court of King Æthelstan of England ( r . 924 – 39 ) . After Æthelstan 's death , Israel successfully sought the patronage of Archbishop Rotbert of Trier and became tutor to Bruno , later the Archbishop of Cologne . In the late 940s Israel is recorded as a bishop , and at the end of his life he was a monk at the Benedictine monastery of Saint @-@ Maximin in Trier . 
