
The Michaelion was one of the earliest and most famous sanctuaries dedicated to
Saint Michael the Archangel in the
Roman Empire
The Roman Empire ( la, Imperium Romanum ; grc-gre, Βασιλεία τῶν Ῥωμαίων, Basileía tôn Rhōmaíōn) was the post- Republican period of ancient Rome. As a polity, it included large territorial holdings around the Medite ...
. According to tradition, it was built in the 4th century by Emperor
Constantine the Great
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) over an ancient pagan temple, and was located just north of
Constantinople
la, Constantinopolis ota, قسطنطينيه
, alternate_name = Byzantion (earlier Greek name), Nova Roma ("New Rome"), Miklagard/Miklagarth ( Old Norse), Tsargrad ( Slavic), Qustantiniya (Arabic), Basileuousa ("Queen of Cities"), Megalopolis ( ...
(modern
Istanbul
Istanbul ( , ; tr, İstanbul ), formerly known as Constantinople ( grc-gre, Κωνσταντινούπολις; la, Constantinopolis), is the List of largest cities and towns in Turkey, largest city in Turkey, serving as the country's economic, ...
), in the village of
Sosthenion (modern
İstinye
İstinye is a neighbourhood in Istanbul, Turkey, on the European side of the city. It is located in the district of Sarıyer, between the neighbourhoods of Emirgan and Yeniköy, on the northwestern shore of the Bosporus strait. It is one of t ...
) on the European shore of the
Bosphorus
The Bosporus Strait (; grc, Βόσπορος ; tr, İstanbul Boğazı 'Istanbul strait', colloquially ''Boğaz'') or Bosphorus Strait is a natural strait and an internationally significant waterway located in Istanbul in northwestern Tu ...
strait.
The pagan temple which had existed there had been previously associated with healing and medicine, and the Christians continued to associate the location and the Michaelion with healing waters.
Michaelion was a magnificent church and became a model for hundreds of other churches in
Eastern Christianity
Eastern Christianity comprises Christian traditions and church families that originally developed during classical and late antiquity in Eastern Europe, Southeastern Europe, Asia Minor, t