During the reign of Roman emperor Claudius, Seneca was sent in exile to the island of Corsica for nine years. This act was caused by Messalina who was the wife of Claudius. In 49 AD Claudius married his own niece Agrippina, and she called Seneca back to Rome to be a tutor for her son Nero. Nero became emperor in 54 AD, and Seneca helped him to rule the Roman Empire for the next five years. After 59 AD, Nero became like a tyrant, and Seneca lost control over him. In 65 AD Nero accused Seneca of helping the people in the Pisonian conspiracy who wanted to kill Nero. Seneca was probably innocent, but Nero forced Seneca to kill himself.