From here:
July 3, 529: The Synod of Orange convenes in southern France. Led by a forcefulAugustinian, Caesarius of Arles, the synod upheldAugustine’s doctrines of grace and free will while condemning the views of Semi-Pelagians (including John Cassian and Faustus of Riez), who believed the human will and God’s grace work together…