Antonia Minor was the younger of two surviving 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 maternal great-grandmother of the Emperor Nero. She outlived her husband Drusus, her oldest son, her daughter and several of her grandchildren.