"Constantine I (Latin: Flavius Valerius Constantinus; Greek: Κωνσταντῖνος, translit. Kōnstantînos; 27 February c. 272 – 22 May 337), also known as Constantine the Great, was Roman emperor from 306 to 337. Born in Naissus, Dacia Mediterranea (now Niš, Serbia), he was the son of Flavius Constantius (a Roman army officer born in Dacia Ripensis who had been one of the four emperors of the Tetrarchy). His mother, Helena, was Greek and of low birth. Constantine served with distinction under the Roman emperors Diocletian and Galerius. He began by campaigning in the eastern provinces (against barbarians, and the Persians) before he was recalled in the west (in 305 AD) to fight with his father in Britain. After his father's death in 306, Constantine became emperor; he was acclaimed by his army at Eboracum (York), England. He emerged victorious in the civil wars against emperors Maxentius and Licinius to become the sole ruler of the Roman Empire by 324." - (en.wikipedia.org 01.09.2021)
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