The Council of Ephesus was a council of Christian bishops convened in Ephesus in AD 431 by the Roman Emperor Theodosius II. This third ecumenical council, an effort to attain consensus in the church through an assembly representing all of Christendom, confirmed the original Nicene Creed, and condemned the teachings of Nestorius, Patriarch of Constantinople, who held that the Virgin Mary may be called the Christotokos, "Christ-bearer" but not the Theotokos, "God-bearer". It met in June and July 431 at the Church of Mary in Ephesus in Anatolia.
Image in the church Notre-Dame de Fourvières, France. The priest standing right in the middle is Cyril of Alexandria. On the throne is the Virgin Mary and child Jesus.
Council of Ephesus in 431, in the Basilica of Fourvière, Lyon
The Church of the East or the East Syriac Church, also called the Church of Seleucia-Ctesiphon, the Persian Church, the Assyrian Church, the Babylonian Church or the Nestorian Church, is one of three major branches of Nicene Eastern Christianity that arose from the Christological controversies of the 5th and 6th centuries, alongside the Miaphisite churches and the Chalcedonian Church.
Ruins of the Monastery of Mar Eliya in Mosul, Iraq in 2005. It was destroyed by ISIS in 2014.
Palm Sunday procession of Nestorian clergy in a 7th- or 8th-century wall painting from a church at Karakhoja, Chinese Turkestan
Mogao Christian painting, a late-9th-century silk painting preserved in the British Museum.
Feast of the Discovery of the Cross, from a 13th-century Nestorian Peshitta Gospel book written in Estrangela, preserved in the SBB.