Emperor Honorius was a Roman emperor who ruled from 393 to 423 AD. He became emperor at a young age and was primarily known for his reign during a time of significant decline for the Western Roman Empire. His rule was marked by political instability and military challenges, including invasions by various tribes. Honorius is often remembered for his decision to move the capital of the Western Roman Empire from Milan to Ravenna, which provided better protection against invasions. His reign saw the sack of Rome in 410 AD by the Visigoths, led by Alaric, a pivotal event in Roman history that symbolized the weakening of imperial power.