Constantine I

[kon-stuh n-teen, -tahyn] /ˈkɒn stənˌtin, -ˌtaɪn/
noun
1.
(Flavius Valerius Aurelius Constantinus"the Great") a.d. 288?–337, Roman emperor 324–337: named Constantinople as the new capital; legally sanctioned Christian worship.
2.
1868–1923, king of Greece 1913–17, 1920–22.
Related forms
Constantinian
[kon-stuh n-tin-ee-uh n] /ˌkɒn stənˈtɪn i ən/ (Show IPA), adjective
post-Constantinian, adjective
British Dictionary definitions for constantine the great

Constantine I

/ˈkɒnstənˌtaɪn; -ˌtiːn/
noun
1.
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 the great in Culture
Constantine the Great [(kon-stuhn-teen, kon-stuhn-teyen)]

A Roman emperor of the fourth century. He founded Constantinople as capital of the eastern part of the Roman Empire. Early in his reign, Constantine issued a document allowing Christians to practice their religion within the empire. Before that, they had frequently been persecuted.