Answer
The wife of Arcadius was Aelia Eudoxia, a Roman born in 401 AD. She was the daughter of the Roman emperor Honorius and his second wife Maria. Aelia Eudoxia was married to Arcadius in 421 AD and they had two children, a son Theodosius II and a daughter Pulcheria. Aelia Eudoxia was a powerful figure in the Eastern Roman Empire and was involved in many political decisions.