Cyriacus I of Byzantium
Bishop of Byzantium from 217 to 230
b. 2nd century · d. 230
19th Archbishop of Constantinople (Ecumenical Patriarch)
Offices
Cyriacus I of Byzantium succeeded Philadelphus of Byzantium as bishop of Byzantium and governed the local church for 13 years ; in some catalogues appears under the name Cyrillianus or Kyriacos.
Related people
- Philadelphus of Byzantium succeeded · inferred
- Castinus of Byzantium preceded · inferred
Commemorated
How we know
Recorded as a historical figure.
- Oriens Christianus in quatuor Patriarchatus digestus 1 claim — Oriens Christianus I, col. 195 sqq. — Patriarchae Constantinopolitani