Germanicus was cremated in Antioch and she transported his ashes to Rome where they were interred at the Mausoleum of Augustus. Agrippina was vocal in claiming her husband was murdered to promote Tiberius' son Drusus Julius Caesar ("Drusus the Younger") as heir. Following the model of her stepgrandmother Livia, she spent the time following Germanicus' death supporting the cause of her sons Nero and Drusus Caesar. This put her and her sons at odds with the powerful Praetorian prefect Lucius Aelius Sejanus who would begin eliminating their supporters with accusations of treason and sexual misconduct in AD 26. Her family's rivalry with Sejanus would culminate with her and Nero's exile in AD 29. Nero was exiled to Pontia and she was exiled to the island of Pandateria, where she would remain until her death by starvation in AD 33.