Brill Encyclopedia of Early Christianity Online

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Marcian (Μαρκιανός/Markianos; c. 392–457 CE) was the eastern Roman emperor (450–457 CE) who convened the Council of Chalcedon to find a way out of the wrangling between those Christians who preferred to speak of “two natures” in Christ and those who preferred the language of “one nature.”

A military tribune, probably from Illyricum, he came to serve as personal assistant of the magister utriusque militiae, “master of both forces” (senior general), Aspar. In 450 CE, after the sudden death of Theodosius II, who left no …

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Waarden, Joop van, “Marcian”, in: Brill Encyclopedia of Early Christianity Online, General Editor David G. Hunter, Paul J.J. van Geest, Bert Jan Lietaert Peerbolte. Consulted online on 05 March 2024 <>
First published online: 2018

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