Diocese of Adramyttium
The Roman Catholic Diocese of Adramyttium was established in the 13th century as a suffragan of Cyzicus, but was later made a suffragan of Ephesus. In 1222, an unnamed bishop was entrusted with a papal assignment.
Titular see
The diocese of Adramyttium was nominally revived as a Latin titular bishopric.It is vacant, having had the following incumbents, all of the lowest rank :
- Jean Heysterbach, Dominican Order
- Wilhelm Mader, Norbertines
- Martin Dieminger
- Jodok Seitz, O. Praem.
- Jakob Goffredi
- Ulrich Geislinger, Friars Minor
- Bishop-elect Johann Welmecher, O.F.M.
- Johann Kerer
- Heinrich Negelin
- Michael Dornvogel
- Sebastian Breuning
- Peter Wall
- Sebastian Müller
- Kaspar Zeiler
- John Leyburn, Apostolic Vicar of the London District
- Dionisio Resino y Ormachea
- José Platas
- Pedro Ponce y Carrasco
- Miguel Cilieza y Velasco
- Rafael Lasala Locela, Augustinians
- Simonas Mikalojus Giedraitis
- Michael von Deinlein, Auxiliary Bishop of Bamberg, later Bishop of Augsburg, finally Metropolitan Archbishop of Bamberg
- James Gibbons, Apostolic Vicar of North Carolina, later Bishop of Richmond, later Titular Archbishop of Ionopolis, Coadjutor Archbishop of Baltimore, succeeding as Metropolitan Archbishop of Baltimore, and was created Cardinal-Priest of Santa Maria in Trastevere, becoming Protopriest of the Sacred College of Cardinals
- Louis-Taurin Cahagne
- Clemente Coltelli, O.F.M.
- Gabriel-Joseph-Elie Breynat, Missionary Oblates of Mary Immaculate, Apostolic Vicar of Mackenzie, later Titular Archbishop of Garella
- Joseph-Marie Trocellier, O.M.I.
- Nicola Agnozzi, Conventual Franciscans