414 CE

Galla Placidia, half-sister of emperor Honorius, is married to the Visigothic king Ataulf at Narbonne. The wedding is celebrated with Roman festivities and magnificent gifts from the Gothic booty. Emperor Theodosius II, age 13, yields power to his older sister Aelia Pulcheria, who reigns as regent and proclaims herself empress (Augusta) of the Eastern Roman Empire. Abdas, bishop of Susa, burns down a Zoroastrian temple; in retaliation, King Yazdegerd I of Persia orders the destruction of churches.

Geopolitics & Diplomacy

Priscus Attalus is proclaimed rival emperor by the Visigoths for a second time at Bordeaux, in order to impose their terms on Honorius, who has his residence in Ravenna.source
The Southern Liang, a state of the Sixteen Kingdoms during the Jin Dynasty, comes to an end.source

Conflict & Security

Constantius III, Roman general (magister militum), begins a military campaign against the Visigoths in Gaul. He blockades the Gallic ports and besieges Marseille.source

Religion & Belief

Abdas, bishop of Susa, burns down a Zoroastrian temple; in retaliation, King Yazdegerd I of Persia orders the destruction of churches.source
Fa-Hien, Chinese Buddhist monk, returns from India and begins translating Buddhist works into Chinese.source

Culture & Society

January 1 – Galla Placidia, half-sister of emperor Honorius, is married to the Visigothic king Ataulf at Narbonne. The wedding is celebrated with Roman festivities and magnificent gifts from the Gothic booty.source
July 4 – Emperor Theodosius II, age 13, yields power to his older sister Aelia Pulcheria, who reigns as regent and proclaims herself empress (Augusta) of the Eastern Roman Empire.source

Deaths

Synesius, bishop of Ptolemais (approximate date)source
Yujiulü Hulü, ruler of the Rouran Khaganate (Mongolia)source