Antonia, elder daughter of Marcus Antonius and Octavia, wife of L. Domitius Ahenobarbus and mother of Cn. Domitius, the father of the Emperor Nero. Tacitus calls this Antonia the youger daughter. She married Nero Claudius Drusus about B.C. 16 and lived long enough to see her grandson, Caligula, access the throne in A.D. 37.