St. Gregory the Great on the Unity of the Three Apostolic Sees of Rome, Antioch and Alexandria

On mutual authority of the Petrine Sees. When Saint Gregory the Great (Mar. 12) was Pope of Rome, he had a lively correspondence with Saint Eulogios, Pope of Alexandria (Feb. 13), and in Letter 40 of Book 7 he writes the following about the unity of the three Sees of Rome, Antioch and Alexandria due […]