In 59 BC, her father Pompey married for a fourth time, to Julia, the daughter of Julius Caesar.
[4] For a time, Pompeia accompanied her younger brother Sextus Pompey to Sicily.
It was in Sicily that Pompeia made various presents for the young future emperor, Tiberius, who had fled with his parents there from Octavian.
Pompeia gave Tiberius such presents as a cloak, a brooch, and a gold bulla.
The historian Suetonius states that these presents were preserved and were exhibited in Baiae in his time.