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...
Kirikuajaloolane Hans von Campenhausen kirjeldab teda nõnda: „Dogmaatiline, vägivaldne ja riukalik; tundis uhkust oma õilsa kutsumuse ja ametikoha väärikuse üle; pidas õigeks vaid seda, millest oli kasu oma võimu ja autoriteedi suurendamiseks...