Julio-Claudian dynasty reign as being strongly influenced by his mother Agrippina, his tutor Seneca, and the Praetorian Prefect Burrus, especially in the first year. He was made Emperor over his step-brother, Claudius' son Britannicus, who he had killed. Agrippina was believed to have poisoned Claudius, having allegedly poisoned her second husband Gaius Sallustius Crispus Passienus. She had also arranged the deaths of Caligula's third wife, Lollia Paulina and Messalina's mother Domitia Lepida the Younger. She saw that the dynasty's numbers dwindle with the execution of Marcus Junius Silanus Torquatus, a grandson of Julia the Younger, to strengthen Nero's claim, having previously arranged
Agrippina the Younger make him emperor. Britannicus was secretly poisoned on Nero's orders during his own banquet in February 55. The power struggle between Agrippina and her son had begun. Agrippina between 55 and 58 became very watchful and had a critical eye over her son. In 55, Agrippina was forced out of the palace by her son to live in imperial residence. Nero deprived his mother of all honors and powers, and even removed her Roman and German bodyguards. Nero even threatened his mother he would abdicate the throne and would go to live on the Greek Island of Rhodes, a place