Луций Домиций Агенобарб
Antonia the Elder (born August/September 39 BC) was a niece of the first Roman emperor Augustus, being the eldest daughter of Octavia the Younger and her second husband the Triumvir Mark Antony. She married Lucius Domitius Ahenobarbus and became the maternal grandmother of empress Messalina as well as paternal grandmother of the emperor Nero.