Cyril of Alexandria

c. 376 – 444 · Alexandria

Biography

Patriarch of Alexandria and leading voice at the Council of Ephesus (431) against Nestorius.

One is the Christ, both before and after the incarnation.
On the Unity of Christ

Writings

  • On the Unity of Christ
  • Twelve Anathemas
  • Commentary on John

Influence

Set the terms of Christological orthodoxy honored by Chalcedonian and Oriental Orthodox alike.