Agrippa Postumus (Latin: Agrippa Julius Augusti f.
Divi n.
Caesar; 12 BC – AD 14), also referred to as Postumus Agrippa, was the youngest son of Marcus Vipsanius Agrippa and Julia the Elder, daughter and only biological child of the Roman Emperor Augustus.
At first Augustus considered Postumus as a potential successor and adopted him as his heir, but banished him from Rome in AD 6 for reasons that remain unknown.
This, in effect (though not in law), cancelled his adoption and virtually assured Tiberius' position as Augustus' sole heir.
Postumus was ultimately executed by his own guards shortly after Augustus' death in AD 14.
Postumus was a member of the Julio-Claudian dynasty, the first imperial family of the Roman Empire.
His maternal grandparents were Augustus and Scribonia, Augustus' second wife.
He was also a maternal uncle of the emperor Caligula, who was the son of Postumus' sister Agrippina the Elder, and a great-uncle of Nero, the last Julio-Claudian emperor, whose mother Agrippina the Younger was Caligula's sister.