This teaching originated with Apollinarius of Laodicea (c. 310-c. 390), a defender of Nicene orthodoxy concerning the Trinity. Apollinarius was concerned to explain the unity of Christ's person and argued in effect that Christ had a human body and divine mind. This teaching was rejected particularly by Antiochene theologians who argued that it did not sufficiently respect the humanity of Christ. Apollinarianism was rejected at the Council of Constantinople I (381). Apollinarianism is also one of the alternatives rejected in the "Definition of Faith" adopted at the Council of Chalcedon (451).