Volume 3: 1771 Edition of the Encyclopedia Britannica!
Nestorians
Nestorians, a Christian sect, the followers of Nestorius, bishop and patriarch of Constantinople; who, about the year 529, taught that there were two persons in Jesus Christ, the divine and the human, which are united, not hypostatically or substantially, but in a mystical manner; whence he concluded, that Mary was the mother of Christ and not the mother of God. For this opinion, Nestorius was condemned and deposed by the (3rd Ecumenical Council of Ephesus) council of Ephesus; and the decree of this council was confirmed by the Emperor Theodosius, who banished the bishop to a monastery.