Pope Gelasius I

Gelasius became bishop of Rome on 1 March 492, possibly after drafting documents for his predecessor Felix III. His pontificate pushed strict Catholic orthodoxy and more assertive claims to papal power, widening the rift between Western and Eastern Churches. Yet he maintained cordial relations with the Ostrogoth rulers of Italy, despite their Arianism—a christological stance Nicene Christians considered heretical. A prolific writer, his style stood at the edge between Late Antiquity and the Early Middle Ages. He died on 21 November 496, four years into a papacy that tightened Rome's doctrinal…