[2] A poem by Crinagoras of Mytilene mentions Antonia's first pregnancy, which may be of a child before Germanicus who must have died in infancy or early childhood.

[2][3][4] Drusus died in June 9 BC in Germany, due to complications from injuries he sustained after falling from a horse.

[5] Germanicus died in 19 AD, allegedly poisoned through the handiwork of Gnaeus Calpurnius Piso and Munatia Plancina.

Tacitus suggests but does not outright say in Annals 3.3 that, on the orders of Tiberius and Livia Drusilla, Antonia was forbidden to go to his funeral.

Livilla allegedly poisoned her husband, Tiberius' son, Drusus Julius Caesar (nicknamed "Castor"), in 23 AD to remove him as a rival.

After Apicata's accusation, which came in the form of a letter to the emperor, several co-conspirators were executed while Livilla was handed over to her mother for punishment.

According to Barrett,[7] But since he had not reached Rome until 28 March, and was absent from the city for much of April, collecting the remains of his mother and brother, there would hardly have been much time to drive Antonia to her death by insulting behaviour.

She died at a time when the euphoria of the beginning of his reign was still rampant, and quite apart from any question of personal affection, a public slight at this time to the most respected woman in Rome, whose death was marked in local Fasti, would have been politically unimaginable.When Claudius became emperor after his nephew's assassination in 41 AD, he gave his mother the title of Augusta.

She is remembered in De Mulieribus Claris, a collection of biographies of historical and mythological women by the Florentine author Giovanni Boccaccio, composed in 1361–62.