Antonia Minor
Antiochus appears to have been very young when his father died in 17. The Roman emperor Tiberius agreed with the citizens of Commagene to make their kingdom a part of the Roman province of Syria. Between 17 and 38, Antiochus seems to have gained Roman citizenship. He lived and was raised in Rome, along with his sister. While he and his sister were growing up in Rome, they were part of the remarkable court of Antonia Minor, a niece of the first Roman emperor Augustus and the youngest daughter of the triumvir Mark Antony. Antonia Minor was a very influential woman and supervised her circle of various princes and princesses. Her circle assisted in the political preservation of the Roman Empire's borders and affairs of the client states.