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 Elder the island of Pandateria, where she would remain until her death by starvation in AD 33. Following the Roman custom of parents and children sharing the same nomen and cognomen, women in the same family would often share the same name. Accordingly, Marcus Vipsanius Agrippa had many relatives who shared the name "Vipsania Agrippina". To distinguish Marcus Agrippa's daughter from his granddaughter, historians refer to his daughter as Latin "Agrippina Maior", literally "Agrippina the Elder". Likewise, Agrippina's daughter is referred to as "Agrippina Minor", literally "Agrippina the Younger". Like her father, Agrippina the Elder avoided her cognomen and was never