Marcus Antonius Creticus IV (47-30bc). This younger Antonius was nicknamed Antyllus. He was the oldest child of Mark Antony by his third wife Fulvia. He was the older brother of Iullus Antonius. In his younger years, he was betrothed to Octavius’ daughter Julia Caesaris. After the alliance between his father and Octavius was over, the engagement was broken off. Octavius murdered him, in Alexandria in 30bc.

In his short life, he was raised by his stepmothers Octavia and Egypt Queen Cleopatra.