423. Death of Honorius; usurpation of Joannes the Notary.
425. Joannes is beheaded. The young Valentinian is proclaimed emperor, and his mother, Placidia, regent.
A synod at Carthage forbids appeals to the Bishop of Rome. The revenues of the Church are become very large.
428. Conquests of the Vandals in Spain.
Nestorius, Bishop of Constantinople, founds the sect of Nestorians, which still subsists in Persia and Turkey.
429. Wild Moors join the Vandals who have invaded Africa.
430. Bonifacius unsuccessfully opposes the Vandals in Africa; they besiege Hippo Regius. St. Augustine dies there in the third month of the siege.
431. Hippo Regius falls.
Third general council of the Church, held at Ephesus; one of the most turbulent in history.
432. Bonifacius, although victorious, perishes in the conflict with his rival Aetius.