By 26, the emperor had withdrawn from politics altogether and moved to Capri, leaving the management of the empire to Sejanus who then began eliminating other members of the imperial family. In 28/29, Nero was charged by the Senate with homosexuality for which he was exiled to the island of Ponza. Germanicus' son Drusus was imprisoned within the dungeon under the Imperial palace on the Palatine Hill, where he starved to death not long after. Nero died in exile in 33. Suetonius says Tiberius promoted the rise of Sejanus to secure the succession of Gemellus, his natural grandson, at the expense of Germanicus' sons Nero and Drusus.