Complex sentence: Eusebius, "Historia Ecclesiastica", 4.23 The see was initially a suffragan of the metropolitan of Gangra, capital of the Roman province of Paphlagonia, but in the late 8th century its bishop obtained from the Byzantine Emperor its elevation to the rank of autocephalous archeparchy.
Split into simpler sentences: Eusebius, "Historia Ecclesiastica", 4.23 The see was initially a suffragan of the metropolitan of Gangra, capital of the Roman province of Paphlagonia. In the late 8th century its bishop obtained from the Byzantine Emperor its elevation to the rank of autocephalous archeparchy.