Marcian was Roman emperor of the East from 450 to 457. Very little is known of his life before becoming emperor, other than that he was a domesticus who served under the commanders Ardabur and his son
Emperor Theodosius II
Fourth Ecumenical Council of Chalcedon, 1876 painting by Vasily Surikov
A detail of the Missorium of Aspar, depicting Aspar and his elder son Ardabur (c. 434).
Death of Marcian, who is succeeded by Leo I (right). Scene from the 12th century Manasses Chronicle.
The Council of Chalcedon was the fourth ecumenical council of the Christian Church. It was convoked by the Roman emperor Marcian. The council convened in the city of Chalcedon, Bithynia from 8 October
Marcian
…settling Germanic tribes within Roman lands as foederati ("federates" providing military service in exchange for benefits). Marcian also convened the Council of Chalcedon, which declared that Jesus had two "natures": divine and human. This led to the alienation of the population of the eastern provinces of Syria and…
Council of Chalcedon, fresco at Ferapontov Monastery, c. 1502
Council of Chalcedon in the Nuremberg Chronicle
Christ Pantocrator mosaic from Hagia Sophia 2744 x 2900 pixels 3.1 MB