In the train which accompanied Drusus, Elius Sejanus was appointed, by his counsels to guide the inexperience of the prince. Sejanus, at that time in a joint commission with his father Strabo, had the command of the prsetorian bands, and stood high in favour with Tiberius:
Aldi berean, bere aita Estrabonen kolega izendaturiko pretorioko prefektua eta Tiberioren konfiantza handikoa zen Elio Seiano izango zen gaztearen gidari eta, besteentzat, arriskuen eta sarien ikusarazle.