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Marcian(mär`shən), 396–457, Roman emperor of the East (450–57); successor of Theodosius II, whose sister PulcheriaPulcheria
, 399–453, Roman empress of the East (414–53), daughter of Arcadius and Eudoxia. She became coruler with her brother, Theodosius II, and regent in 414. Theodosius remained under her influence most of his life.
..... Click the link for more information. he married in 450. Orthodox in religious affairs, he convoked (451) the Council of Chalcedon (see Chalcedon, Council ofChalcedon, Council of,
fourth ecumenical council, convened in 451 by Pulcheria and Marcian, empress and emperor of the East, to settle the scandal of the Robber Synod and to discuss Eutychianism (see Eutyches).
..... Click the link for more information. ). He curtailed court expenses and endeavored to lighten taxation. His refusal to pay tribute to AttilaAttila
, d. 453, king of the Huns (445–53). After 434 he was coruler with his brother, whom he murdered in 445. In 434, Attila obtained tribute and great concessions for the Huns in a treaty with the Eastern Roman emperor Theodosius II, but, taking advantage of Roman wars
..... Click the link for more information. precipitated the Hunnic invasion of the Roman Empire. With him the Theodosian dynasty came to an end in the East. Leo I succeeded him.