In the eighth year of the above-mentioned reign Soter succeeded Anicetus as bishop of the church of Rome, after the latter had held office eleven years in all. But when Celadion had presided over the church of Alexandria for fourteen years he was succeeded by Agrippinus.
Historia Ecclesiastica
Book IV, Chapter 19. The Rulers of the Churches of Rome and Alexandria during the Reign of Verus
1 section
Eusebius of Caesarea
Trans. Arthur Cushman McGiffert, A Select Library of Nicene and Post-Nicene Fathers of the Christian Church, Second Series, Volume I, 1890. Public domain.