 Nestorius's opponents charged him with detaching Christ's divinity and humanity into two persons existing in one body, thereby denying the reality of the Incarnation.It is not clear whether Nestorius actually taught that.Eusebius, a layman who later became the bishop of the neighbouring Dorylaeum, was the first to accuse Nestorius of heresy but the most forceful opponent of Nestorius was Patriarch Cyril of Alexandria.