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 to so "abominable a son." After Agrippina's death, Nero viewed her corpse and commented how beautiful she was, according to some. Her body was cremated that night on a dining couch. At his mother's funeral, Nero was witless, speechless and rather scared. When the news spread that Agrippina had died, the Roman army, senate and various people sent him letters of congratulations that he had been saved from his mother's plots. During the remainder of Nero's reign, Agrippina's grave was not covered or enclosed. Her household later on gave her a modest tomb in Misenum. Nero would have his mother's