known as Constantine the Great. Latin name Flavius Valerius Aurelius Constantinus. ?280–337 ad, first Christian Roman emperor (306–337): moved his capital to Byzantium, which he renamed Constantinople (330)
2.
1868–1923, king of Greece (1913–17; 1920–22): deposed (1917), recalled by a plebiscite (1920), but forced to abdicate again (1922) after defeat by the Turks
Constantine I in American English
(ˈkɑnstənˌtin; ˈkɑnstənˌtaɪn)
Con‧stan‧tine I(Flavius Valerius Aurelius Constantinus) a.d. 280?-337; emperor of Rome (306-337): converted to Christianity