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Philadelphus of Byzantium
Philadelphus (? – 217) is referred to as the first bishop of Byzantium after the eight-year administration of the Church of Byzantium by a priest whose name has not been recorded. He was bishop for six years (211–217).
Titles of the Great Christian Church
Preceded byMarcus I
Bishop of Byzantium 211–217
Succeeded byCyriacus I