Note 2 — Chapter III · What God Is.
Reading edition
The four first Councils were 1. That of Nice in the year 345, under the Emperor Constantine the Great, and under Pope Sylvester I.; 2. That of Constantinople in the year 381, under the Emperors Gratian, Valentinian and Theodore and the Pope Damase I.; 3. That of Ephesus in the year 431, under the Emperor Theodore, the younger, and Valentinian and under the Pope Celestin; 4. That of Chalcedon in the year 451, under Valentinian and Martian, and under Pope Leo I. ↑