Answer
Theodosius I was the last Roman emperor to rule both the Western and Eastern Roman Empire. He had two sons, Honorius and Arcadius, who inherited his empire. Honorius ruled the Western Roman Empire from 395 to 423, while Arcadius ruled the Eastern Roman Empire from 395 to 408. Both sons were young and inexperienced when they came to power, and their reigns were marked by political instability and military conflict.