Pelagius on, [458], [460], [464] f.;

council of Orange, [473-475].

Orleans, council of (A. D. 511), [580], [618];

(A. D. 541), [618];

(A. D. 549), [580], [619].

Orthodoxy, enforcement of, [367], [370].

Ostrogoths, Church under, [529] f.

Ousia distinguished from hypostasis, [348] f.

Pachomius, Rule of, [402-405].