 Tenth @-@ century sources describe Israel as a bishop ; around 950 a man with this name is identified as Bishop of Aix @-@ en @-@ Provence , but it is not certain that he was the same person . Between 948 and 950 he may have held a bishopric in Aachen , where he debated Christian ideas about the Trinity with a Jewish intellectual called Salomon , probably the Byzantine ambassador of that name . He retired to become a monk at the Benedictine monastery of Saint @-@ Maximin in Trier , and died on 26 April in an unknown year . Lapidge sets his death in about 970 , whereas Wood dates it before 967 – 68 . 
