Polycarpus II of Byzantium was a presbyter who served as the bishop of Byzantium during the early second century. His tenure as the leader of the local church lasted from approximately 141 until his death in 144. He followed Felix of Byzantium in this ecclesiastical role and was succeeded by Athenodorus. Recognized as the Ecumenical Patriarch of Constantinople, he is honored as a saint within the Christian tradition.
Life and office
Historical accounts regarding the exact length of his leadership vary. While some ancient records suggest he held his position for seventeen years, the historian Nikiforos Kallistos indicates that his reign lasted only three years. He occupied the seat of Byzantium during a period before the major schisms of the church.
Veneration
Polycarpus II is commemorated as a saint. His legacy is preserved through the historical succession of the bishops of Byzantium, marking his place within the early leadership of the church in Constantinople.