The Diocese of Macedonia ( la, Dioecesis Macedoniae; el, Διοίκησις Μακεδονίας) was a

diocese In church governance, a diocese or bishopric is the ecclesiastical district under the jurisdiction of a bishop. History In the later organization of the Roman Empire, the increasingly subdivided provinces were administratively associ ...

of the later

Roman Empire The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post-Roman Republic, Republican period of ancient Rome. As a polity, it included large territorial holdings aro ...

, forming part of the

praetorian prefecture of Illyricum The praetorian prefecture of Illyricum ( la, praefectura praetorio per Illyricum; el, ἐπαρχότης/ὑπαρχία �ῶν πραιτωρίωντοῦ Ἰλλυρικοῦ, also termed simply the Prefecture of Illyricum) was one of four ...

. Its administrative centre was Thessaloniki.

History

The diocese was formed, probably under

Constantine I Constantine I ( , ; la, Flavius Valerius Constantinus, ; ; 27 February 22 May 337), also known as Constantine the Great, was Roman emperor from AD 306 to 337, the first one to convert to Christianity. Born in Naissus, Dacia Mediterran ...

(r. 306–337), from the division of the Diocletianic

Diocese of Moesia The Diocese of Moesia ( la, Dioecesis Moesiarum, el, Διοίκησις Μοισίας) was a diocese of the later Roman Empire, in the area of modern western Bulgaria, central Serbia, Montenegro, Albania, North Macedonia, and Greece. Histo ...

. It included the provinces of Macedonia Prima,

Macedonia Salutaris Macedonia ( grc-gre, Μακεδονία) was a province of the Roman Empire, encompassing the territory of the former Antigonid Kingdom of Macedonia, which had been conquered by Rome in 168 BC at the conclusion of the Third Macedonian War. The p ...

, Thessalia,

Epirus vetus sq, Epiri rup, Epiru , native_name_lang = , settlement_type = Historical region , image_map = Epirus antiquus tabula.jpg , map_alt = , map_caption = Map of ancient Epirus by Heinric ...

Epirus nova sq, Epiri rup, Epiru , native_name_lang = , settlement_type = Historical region , image_map = Epirus antiquus tabula.jpg , map_alt = , map_caption = Map of ancient Epirus by Heinric ...

, Achaea, and

Crete Crete ( el, Κρήτη, translit=, Modern: , Ancient: ) is the largest and most populous of the Greek islands, the 88th largest island in the world and the fifth largest island in the Mediterranean Sea, after Sicily, Sardinia, Cyprus, ...

. Alongside

Dacia Dacia (, ; ) was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It ...

and, until 379, Pannonia, it made up the Prefecture of Illyricum. In 379, Pannonia was detached and merged into the

Praetorian prefecture of Italy The praetorian prefecture of Italy ( la, Praefectura praetorio Italiae, in its full form (until 356) ) was one of four praetorian prefectures into which the Late Roman Empire was divided. It comprised the Italian peninsula, the Western Balkans ...

and Thessaloniki became the Prefecture's new capital city instead of

Sirmium Sirmium was a city in the Roman province of Pannonia, located on the Sava river, on the site of modern Sremska Mitrovica in the Vojvodina autonomous provice of Serbia. First mentioned in the 4th century BC and originally inhabited by Illyria ...

Sources

* ''

Notitia dignitatum The ''Notitia Dignitatum'' (Latin for "The List of Offices") is a document of the late Roman Empire that details the administrative organization of the Western and the Eastern Roman Empire. It is unique as one of very few surviving documents o ...

'', ''Pars Orientalis'', III *Joseph Roisman, Ian Worthington,
A Companion to Ancient Macedonia
', Macedonia Ancient Albania Greece in the Roman era Macedonia (Roman province) Byzantine provinces in Macedonia Civil dioceses of the Byzantine Empire Praetorian prefecture of Illyricum Christianity in North Macedonia {{Byzantine-geo-stub

History

See also

Sources