Antonia Minor (
PIR2 A 885), also known as
Julia Antonia Minor,
Antonia the Younger or simply
Antonia (31 January 36 BC - September/October AD 37) was the younger of two daughters of
Mark Antony and
Octavia Minor. She was a niece of the
Emperor Augustus, sister-in-law of the Emperor
Tiberius, paternal grandmother of the Emperor
Caligula and Empress
Agrippina the Younger, mother of the Emperor
Claudius, and both maternal great-grandmother and paternal great-aunt of the Emperor
Nero. She was additionally the maternal great-aunt of the Empress
Valeria Messalina and
Faustus Cornelius Sulla Felix, the paternal grandmother of
Claudia Antonia,
Claudia Octavia, and
Britannicus, the grandmother of Caligula and the maternal grandmother of
Julia Livia and
Tiberius Gemellus.