Church historian Hans von Campenhausen describes him as “dogmatic, violent, and cunning, permeated by the greatness of his calling and the dignity of his office, ” and adds that“ he never considered anything as right unless it was useful to him in the furtherance of his power and authority...
વધુમાં તે ઉમેરે છે કે “પોતાની સત્તા અને હોદ્દા માટે ઉપયોગી ન હોય એવી કોઈ પણ બાબતને તે કદી પણ સાચી ગણતો ન હતો...