Eutyches or Eutyches of Constantinople was a presbyter and archimandrite at Constantinople. He first came to notice in 431 at the First Council of Ephesus, for his vehement opposition to the teachings of Nestorius. At the 448 Synod of Constantinople and the 451 Council of Chalcedon, Eutyches was condemned for having adopted an equally extreme, although opposite view. He himself, however, would reject this interpretation of his thought.

Aelia Pulcheria was an Eastern Roman empress who advised her brother emperor Theodosius II during his minority and then became wife to emperor Marcian from November 450 to her death in 453.