Caesarea Philippi became the seat of a bishop at an early date: local tradition has it that the first bishop was the Erastus mentioned in Saint Paul's Letter to the Romans (Romans 16:23). What is historically verifiable is that the see's bishop Philocalus was at the First Council of Nicaea (325), that Martyrius was burned to death under Julian the Apostate, that Baratus was at the First Council of Constantinople in 381. Flavian, (420) Bishop of Caesarea Philippi[33][34][35][36] and Olympius at the Council of Chalcedon in 451 AD.