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Constantine I
Definition by Donald L. Wasson

Constantine I

Constantine I was Roman emperor from 306 to 337 CE. Realizing that the Roman Empire was too large for one man to adequately rule, Emperor Diocletian (284-305 CE) split the empire into two, creating a tetrachy or rule of four. While he ruled...
Constantine VII
Definition by Mark Cartwright

Constantine VII

Constantine VII was Byzantine emperor from 945 until 959 CE. Sometimes known as Constantine Porphyrogennetos because of his birth in the purple chamber of the royal palace, he was served by various regents from 912 CE until reigning in his...
Constantine X Doukas
Definition by Michael Goodyear

Constantine X Doukas

Constantine X Doukas was the ruler of the Byzantine Empire from 1059 to 1067 CE. During his reign, the Byzantine Empire was attacked by emerging enemies on all sides, including the Normans in Italy and the Seljuk Turks in Armenia and Anatolia...
Constantine VI
Definition by Mark Cartwright

Constantine VI

Constantine VI, also known as Constantine "the Blinded”, was emperor of the Byzantine Empire from 780 to 797 CE, although for most of his reign his mother, Irene the Athenian, ruled as regent. When Constantine did finally get a...
Constantine V
Definition by Mark Cartwright

Constantine V

Constantine V, also known as Constantine the Dung-named by his enemies, was emperor of the Byzantine empire from 741 to 775 CE. He enjoyed military successes in the Middle East and Balkans but his reign is chiefly remembered for his systematic...
Donation of Constantine
Definition by Joshua J. Mark

Donation of Constantine

The Donation of Constantine (Donatio Constantini or the Donatio) is a medieval forgery dated to the 8th century CE purporting to be an original 4th-century CE document in which the Roman emperor Constantine the Great (r. 306-337 CE...
Constantine IV
Definition by Mark Cartwright

Constantine IV

Constantine IV ruled as emperor of the Byzantine empire from 668 to 685 CE. His reign is best remembered today for the five-year Arab siege of Constantinople from 674 CE, which the Byzantines resisted thanks to their strong fortifications...
The Arch of Constantine, Rome
Article by Mark Cartwright

The Arch of Constantine, Rome

The Arch of Constantine I, erected in c. 315 CE, stands in Rome and commemorates Roman Emperor Constantine’s victory over the Roman tyrant Maxentius on 28th October 312 CE at the battle of Milvian Bridge in Rome. It is the largest surviving...
Constantinople
Definition by Donald L. Wasson

Constantinople

Built in the seventh century BCE, the ancient city of Byzantium proved to be a valuable city for both the Greeks and Romans. Because it lay on the European side of the Strait of Bosporus, the Emperor Constantine understood its strategic importance...
Visual Chronology of Roman Emperors: Augustus to Constantine
Article by Mark Cartwright

Visual Chronology of Roman Emperors: Augustus to Constantine

The Julio-Claudian Dynasty [image:486] Augustus 16 Jan 27 BCE - 19 Aug 14 CE [image:777] Tiberius 18 Sep 14 CE - 16 Mar 37 CE [image:2400] Caligula 18 Mar 37 CE - 24 Jan 41 CE [image:644] Claudius 25 Jan 41 CE - 13...