List of bishoprics subordinated to the metropolis of Nicomedia:

bishopric of Proussa or Theoupolis

bishopric of Basilinopolis

bishopric of Praenetos

bishopric of Elenoupolis

bishopric of Apollonias

bishopric of Daskylion

bishopric of Gallos

bishopric of Neocaesarea

bishopric of Kadosia or Lofon

bishopric of Adrianon

bishopric of Caesarea

bishopric of Ariste or Eriste, Daphnousia

List of the bishops of Nicomedia

Prochoros

Euandros (2^nd century)

Cyril ( ?)

Anthimos (303)

Eustolios (314)

Marathonios (342, 360)

Onesimos ( ?)

Euphrasios (Second Ecumenical Council, Constantinople, 381)

Patricios ( ?)

Gerontios (401)

Pansophios ( ?)

Diodoros ( ?)

Himerios (Third Ecumenical Council, Ephesus, 431, 432)

Eunomios (<398-404, 446, “Rabber” Council of Ephesus, 449>)

Stephan (518, 520)

Thalassios (536)

John (Fifth Ecumenical Council, 553)

Josephus (?)

Peter (Sixth Ecumenical Council, 681, / , 691)

John (?)

Constantine (?)

Peter (Seventh Ecumenical Council, Nicaea, 787)

Theophylaktos (814)

Gregory (9^th century)

Ignatius (843, 846)

Theophilos Monomachos (845/846)

John (858-867)

George (Photeian Synod, 879)

Gregory (919-925)

Ignatios (921, 945)

Stephan (976, 1003)

John (1030)

Antonios Paches (1035, 1037)

Basil (1071)

Stephan (11^th century)

Michael (1082)

Constantine (1094/5, 1136)

Niketas (?)

John (1152)

Theophylaktos (1157)

Michael (1166, 1169)

John (1174, 1177)

Karakalos (1289, 1294-1300)

Cyril (1285-1316)

Maximos (1324-1327)

Makarios (1385, 1397)

List of Arian bishops of Nicomedia

Eusebios (First Ecumenical Council, 325)

Amphion (325, 328, 338)

Kekropios (351, 358)