Events By place Roman Empire March 11—Elagabalus is assassinated, along with his mother, Julia Soemias, by the Praetorian Guard during a revolt. Their bodies are dragged through Rome before being cast into the Tiber. Alexander Severus succeeds Elagabalus. As he's only 13 years old, his aunt, Julia Avita Mamaea, governs the empire with the help of Domitius Ulpianus and a council composed of senators. Asia The Kingdom of Wu is established in China. The forces of Sun Quan defeat Liu Bei at… (More on 222)