Antonia Minor Caligula, Agrippina the Younger, Julia Drusilla, Julia Livilla and later Claudia Antonia, Claudius's daughter through his second wife Aelia Paetina, her younger grandchildren. She outlived her husband, her oldest son, her daughter and several of her grandchildren. In 31 AD, Antonia exposed a plot by her daughter Livilla and Tiberius’ notorious Praetorian prefect, Sejanus, to murder the Emperor Tiberius and Caligula and to seize the throne for themselves. Livilla had allegedly poisoned her husband, Tiberius' son, Drusus Julius Caesar (nicknamed "Castor") to remove him as a rival. Sejanus was executed on Tiberius’ orders, and Livilla was handed over to her
Agrippina the Elder to Augustus, a significant factor in the marriages of the emperors and princes of the dynasty. The Annals repeatedly has Agrippina competing for influence with Tacitus simply because she is related to Augustus biologically. Tacitus presents Agrippina as being kindred to aristocratic males, and has her reversing gender roles, which showcases her assumption of male "auctoritas" ("authority") with metaphors of her dressing and undressing. In an example of Agrippina assuming "auctoritas", he says: Using the above epithet, ""(femina) ingens animi"" ("..[a woman], great for her courage"), he assigns a haughty attitude to Agrippina that compels her to explore the affairs