Julia the Younger [SEP] sister
a member of the Julian gens by birth: being the daughter of Marcus Vipsanius Agrippa made her a "Vipsania Agrippina" by birth, although there are no contemporary sources that show that that name was ever used for her. She came to belong to the household of the Julio-Claudian dynasty as she was raised and instructed by her maternal grandfather Augustus. Further, Augustus adopted Tiberius as his son (and heir), while Tiberius was remarried to Julia the Elder. Augustus became something of a "paternal" grandfather to
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Like with her sister Agrippina, Julia Drusilla or Drusilla (16 - 38) is seldom identified as "Julia". She was the first younger sister to Agrippina the Younger and beloved sister to Caligula. Caligula's daughter, Julia Drusilla was named after her.
Julia Livilla.
Known as Julia Livia, or more familiarly by the diminutive "Livilla" (18 - late 41 or early 42).
Julia Drusilla (daughter of Caligula).
Julia Drusilla (AD 39 – 41).