This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Castinus of Byzantium" – news · newspapers · books · scholar · JSTOR (April 2020) (Learn how and when to remove this template message)

Castinus of Byzantium
Bishop of Byzantium
Installed	230
Term ended	237
Personal details
Denomination	Early Christianity

Castinus I (Greek: Καστῖνος; died 237) was reputedly the Bishop of Byzantium between 230 and 237. In some catalogues, he appears as Constantine.

He was a senator from Rome, who initially was not a Christian. He converted to Christianity, being baptised by the bishop of Argyropolis, Cyrillianus. From then on, he gave his fortune to the poor and was devoted to the Church. He was bishop of Byzantium from 230 to 237. Until his tenure, the cathedral was near the sea in the area of present Galata. He built one of the oldest churches in Byzantium to honour Saint Euphemia.^[1]

Nicephorus Callistus refers to him in his works as Constantine.

His memory is revered on January 25.

Church historian Frederick George Holweck says that there were no bishops at Byzantium in the third century.^[2]

Sources

The Ecumenical Patriarchate of Constantinople

Titles of the Great Christian Church Previous:Cyriacus I Bishop of Byzantium 230–237 Next:Eugenius I

v t e Bishops of Byzantium and Patriarchs of Constantinople
Bishops of Byzantium (Roman period, 38–330 AD)	Andrew Stachys Onesimus Polycarpus I Plutarch Sedecion Diogenes Eleutherius Felix Polycarpus II Athenodorus Euzois Laurence Alypius Pertinax Olympianus Marcus I Philadelphus Cyriacus I Castinus Eugenius I Titus Dometius Rufinus Probus Metrophanes Alexander
Archbishops of Constantinople (Roman period, 330–451 AD)	Alexander Paul I Eusebius Macedonius I Eudoxius Evagrius Demophilus Maximus I Gregory I Nectarius John I Chrysostom Arsacius Atticus Sisinnius I Nestorius Maximianus Proclus Flavian Anatolius
Patriarchs of Constantinople (Byzantine period, 451–1453 AD)	Anatolius Gennadius I Acacius Fravitta Euphemius Macedonius II Timothy I John II Epiphanius Anthimus I Menas Eutychius John III John IV Cyriacus II Thomas I Sergius I Pyrrhus Paul II Peter Thomas II John V Constantine I Theodore I George I Paul III Callinicus I Cyrus John VI Germanus I Anastasius Constantine II Nicetas I Paul IV Tarasius Nicephorus I Theodotus I Antony I John VII Methodius I Ignatios Photios I Stephen I Antony II Nicholas I Εuthymius I Stephen II Tryphon Theophylact Polyeuctus Βasil I Αntony III Nicholas II Sisinnius II Sergius II Eustathius Alexius Michael I Constantine III John VIII Cosmas I Eustratius Nicholas III John IX Leo Michael II Cosmas II Nicholas IV Theodotus II Neophytus I Constantine IV Luke Michael III Chariton Theodosius I Basil II Nicetas II Leontius Dositheus George II John X Michael IV^† Theodore II^† Maximus II^† Μanuel I^† Germanus II^† Methodius II^† Manuel II^† Arsenius^† Nicephorus II^† Germanus III Joseph I John XI Gregory II Athanasius I John XII Nephon I John XIII Gerasimus I Isaias John XIV Isidore I Callistus I Philotheus Macarius Nilus Antony IV Callistus II Matthew I Euthymius II Joseph II Metrophanes II Gregory III Athanasius II
Patriarchs of Constantinople (Ottoman period, 1453–1923 AD)	Gennadius II Isidore II Joasaph I Sophronius I Mark II Symeon I Dionysius I Raphael I Maximus III Nephon II Maximus IV Joachim I Pachomius I Theoleptus I Jeremias I Joannicius I Dionysius II Joasaph II Metrophanes III Jeremias II Pachomius II Theoleptus II Matthew II Gabriel I Theophanes I Meletius I Neophytus II Raphael II Cyril I Timothy II Gregory IV Anthimus II Cyril II Athanasius III Neophytus III Parthenius I Parthenius II Joannicius II Cyril III Paisius I Parthenius III Gabriel II Parthenius IV Dionysius III Clement Methodius III Dionysius IV Gerasimus II Athanasius IV James Callinicus II Neophytus IV Gabriel III Neophytus V Cyprianus Athanasius V Cyril IV Cosmas III Jeremias III (Callinicus III) Paisius II Seraphim I Neophytus VI Cyril V Callinicus IV (III) Seraphim II Joannicius III Samuel Meletius II Theodosius II Sophronius II Gabriel IV Procopius Neophytus VII Gerasimus III Gregory V Callinicus V (IV) Jeremias IV Cyril VI Eugenius II Anthimus III Chrysanthus Agathangelus Constantius I Constantius II Gregory VI Anthimus IV Anthimus V Germanus IV Meletius III Anthimus VI Cyril VII Joachim II Sophronius III Joachim III Joachim IV Dionysius V Neophytus VIII Anthimus VII Constantine V Germanus V Meletius IV
Patriarchs of Constantinople (Turkish period, since 1923 AD)	Gregory VII Constantine VI Basil III Photius II Benjamin Maximus V Athenagoras Demetrius Bartholomew
^† in exile at Nicaea Christianity portal

References

Sources