The power of the pope during the middle ages; or, An historical inquiry into the origin of the temporal power of the Holy See, and the constitutional laws of the middle ages relating to the deposition of the sovereigns. With an introduction on the honours and temporal privileges conferred on religion and its ministers by the nations of antiquity, especially by the first Christian emperors
Gosselin, Jean Edme Auguste, 1787-1858; Kelly, Matthew, 1814-1858, tr