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 to describe Agrippina. His comments are echoed by other sources. Historian Lindsay Powell says Agrippina enjoyed a normal marriage and continued to show her devotion to Germanicus after his death. He says she was regarded by the Roman people as, quoting Tacitus, "the glory of the country, the sole surviving offspring of Augustus, the solitary example of the good old times." Alston cautions against accepting the stories of Agrippina's feud with Sejanus at face value, as these accounts reflect a tradition hostile to Tiberius and Sejnaus. They may have been circulated by Agrippina's supporters or they may have emerged after