Diocletian ruled the east, while Constantine rose to power in the west. With this switch of the empire's capital from the West to the East, Constantine began what has come to be known to history as the Eastern Roman Empire, or the Byzantine Empire. Photos for DBpedia.org resource Constantine_VII in flickr™ wrappr He was the junior colleague of the Augustus Maximian under the Tetrarchy and succeeded him as senior co-emperor of the western part of the empire. His acceptance of Christianity and his establishment of an eastern … This is a list of the Byzantine emperors from the foundation of Constantinople in 330 AD, which marks the conventional start of the Byzantine Empire (or the Eastern Roman Empire), to its fall to the Ottoman Empire in 1453 AD. DIR Atlas Constantine I (306 - 337 A.D.) Hans A. Pohlsander SUNY Albany. Emperor Constantine (ca A.D. 280– 337) reigned over a major transition in the Roman Empire—and much more. The Fall of the Western Roman Empire. Succeeding his brother, Atticus II, Constantine VII led the Frankish Empire through a difficult era of economic and sociological chaos following the First Viking Wars. Constantine rose to power during a bloody struggle in Roman Britain and was acclaimed emperor by the local legions in 407. In 945, Constantine expelled the sons of Romanus and began his personal rule. Picture by Evgeny Emelyanov Constantine the Great was Roman Emperor from 306 to 337. For Constantine, one of the greatest threats to Roman domination and peace was disunity. Porphyrogenitus (Gr. Constantius I, posthumously known after the sixth century as Constantius Chlorus, was a Roman Emperor.He ruled as Caesar from 293 to 305 and as Augustus from 305 to 306. He chose to split the huge empire into n eastern and western parts, with a ruler for each portion of the empire. Usually, there was an emperor of the Western Roman Empire ruling from Italy or Gaul, and an emperor of the Eastern Roman Empire ruling from Constantinople. This victory had repercussions that were to affect the city's development enormously. The emperors used a variety of different titles throughout history. Constantine VII. Constantine VII Porphyrogennetos crowned by Christ, ivory, ca. The First Council of Nicaea was convened by the Roman Emperor Constantine I in 325. Constantine VII (19 November 843-3 April 879) was the Emperor of the Byzantine Empire and the Frankish Empire from 21 of December to his death in 879. Constantine VII Flavius Porphyrogenitus was the fourth Emperor of the Macedonian dynasty of the Byzantine Empire, reigning from 913 to 959. ZU_09 / Getty Images. However, his spiritual growth and eventual conversion did not happen at once with this one dramatic event. Romanos I Lekapenos (Ρωμανός Α' ο Λεκαπηνός) (870 - 948, ruled 919 - 944) – father-in-law of Constantine VII; coemperor, deposed by his sons and entered monastery 55. the Wise.Though nominally emperor from 912–959, it was not until 945 that Constantine could really be called sole ruler. Constantine the Great was a Roman Emperor from 306-337 CE. Eastern Roman (Byzantine) Empire. Tiberius II Constantine (Latin: Constantinus; Byzantine Greek: Τιβέριος Κωνσταντῖνος, Tiberios Kōnstantînos; 520 – 14 August 582) was Eastern Roman emperor from 574 to 582. It began years before this while he was stationed in Gaul along the Rhine frontier. Constantine VII Porphyrogennetos or Porphyrogenitus, "the Purple-born" (that is, born in the purple marble slab-paneled imperial bed chambers; Greek: Κωνσταντῖνος Ζ΄ Πορφυρογέννητος, Kōnstantinos VII Porphyrogennētos; 17-18 May 905 – 9 November 959), was the fourth Emperor of the Macedonian dynasty of the Byzantine Empire, reigning from 913 to 959. 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