(422–432). As the successor of Boniface I, Celestine attempted to consolidate the Roman primacy, but he encountered the resistance of the West African bishops. Moreover, he opposed Pelagianism (Pelagius) and from 430 Nestorius; the majority of his correspondence relates to this conflict. ¶ Eventually, he sent Germanus of Auxerre in 429 and “the Celtic bishop” Palladius in 431 to England and Ireland for the anti-Pelagian mission.
PL 50, 417–558
ACO I/1/7, 125–137; I/2/5, 5–101
E. Caspar, Geschichte des…