Lucius Domitius Ahenobarbus
Due to his youth and inexperience, the Emperor had others go with him as advisors. Among his entourage to the east were: Marcus Lollius as "adiutor" ("helper"), Publius Sulpicius Quirinus as "rector" ("guide"), the future historian Velleius Paterculus, Lucius Domitius Ahenobarbus (grandfather of Nero), Juba II of Numidia, and future praetorian prefect Sejanus.