Titular Episcopal See of

Syedra

Rite: Roman (Latin)

Location: Sedra, pr. Pamfilia I, m. Side, Turkey

1933: Established as Titular Episcopal See of Syedra (latine) / Siedra (Italiano) / Syedren(sis) (Latin)

Titular Bishop:

vacant

Titular Bishop: Bishop Frederic Osterrath, O.S.B. Subl. (1956.11.14 – 1960.07.22)
Titular Bishop: Bishop Francisco Javier Nuño y Guerrero (later Archbishop) (1951.07.10 – 1951.12.05)
Titular Bishop: Bishop John Baptist Rosenthal, S.A.C. (1948.04.09 – 1951.01.11)

as of 2021.03.01