Portal:Ecumenical Councils

First seven ecumenical councils
The first seven ecumenical councils, from the First Council of Nicaea (325) to the Second Council of Nicaea (787), represented an attempt to reach an orthodox consensus and to establish a unified Christendom as the state church of the Roman Empire.


 * 1) First Council of Nicaea (325)
 * 2) First Council of Constantinople (381)
 * 3) Council of Ephesus (431)
 * 4) * Second Council of Ephesus (449; convened as an ecumenical council but later denounced as a Robber Council by the Chalcedonians (Catholics, Eastern Orthodox, Protestants).)
 * 5) Council of Chalcedon (451)
 * 6) Second Council of Constantinople (553)
 * 7) Third Council of Constantinople (680-681)
 * 8) * Quinisext Council (692; also called Council in Trullo; the ecumenical status of this council was repudiated by the western churches.)
 * 9) Second Council of Nicaea (787)

Further councils recognized by some Eastern Orthodox churches

 * Fourth Council of Constantinople (879–880)
 * Fifth Council of Constantinople (1341–1351)
 * Synod of Jassy (1642)
 * Synod of Jerusalem (1672)