Constantia or Konstantia (Ancient Greek: Κωνσταντία) was a town of some importance in the province Osrhoene in Mesopotamia, on the road between Nisibis and Carrhae, at no great distance from Edessa.
[1] There is considerable variation in different authors in the way in which the name of this town is written and the names under which it is known, including: Constantia or Konstantia (Κωνσταντία),[2] Constantina or Konstantina (Κωνσταντίνα),[3] Antoninopolis,[4] Nicephorium or Nikephorion (Νικηφόριον),[5] Maximianopolis (Μαξιμιανούπολις),[4] Constantinopolis in Osrhoene,[6] Tella and Antiochia Arabis,[7] Antiochia in Mesopotamia (Ἀντιόχεια τῆς Μεσοποταμίας – Antiocheia tes Mesopotamias) and Antiochia in Arabia (Ἀντιόχεια ἡ Ἀραβική – Antiocheia e Arabike).
[8] According to the Byzantine historian John Malalas, the city was built by the Roman Emperor Constantine I on the site of former Maximianopolis, which had been destroyed by a Persian attack and an earthquake.
[12] No longer a residential bishop, it remains a titular see of the Roman Catholic Church under the name Constantina.
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