First seven ecumenical councils
The councils
These seven ecumenical councils are:

First seven ecumenical councils

Section Title: The councils
Table Section Text: These seven ecumenical councils are:

Council	Date	Convoked by	President	Attendance (approx.)	Topics

First Council of Nicaea	325 (May 20-June 19)	Emperor Constantine I	Hosius of Corduba (and Emperor Constantine)	318	Arianism, the nature of Christ, celebration of Passover (Easter), ordination of eunuchs, prohibition of kneeling on Sundays and from Easter to Pentecost, validity of baptism by heretics, lapsed Christians, sundry other matters.

First Council of Constantinople	381 (May-July)	Emperor Theodosius I	Timothy of Alexandria, Meletius of Antioch, Gregory Nazianzus, and Nectarius of Constantinople	150	Arianism, Apollinarism, Sabellianism, Holy Spirit, successor to Meletius

Council of Ephesus	431 (June 22-July 31)	Emperor Theodosius II	Cyril of Alexandria	200–250	Nestorianism, Theotokos, Pelagianism

Council of Chalcedon	451 (October 8-November 1)	Emperor Marcian	A board of government officials and senators, led by the patrician Anatolius	520	The judgments issued at the Second Council of Ephesus in 449, the alleged offences of Bishop Dioscorus of Alexandria, the relationship between the divinity and humanity of Christ, many disputes involving particular bishops and sees.

Second Council of Constantinople	553 (May 5-June 2)	Emperor Justinian I	Eutychius of Constantinople	152	Nestorianism monophysitism

Third Council of Constantinople	680-681 (November 7-September 16)	Emperor Constantine IV	Patriarch George I of Constantinople	300	Monothelitism, the human and divine wills of Jesus

Second Council of Nicaea	787 (September 24-October 23)	Constantine VI and Empress Irene (as regent)	Patriarch Tarasios of Constantinople, legates of Pope Adrian I	350	Iconoclasm

Sentence(s)

Theodosius II summoned the council of Ephesus.

final_sentence: Theodosius II summoned the council of Ephesus.