Identity and Origins
Aristobulus is named among the Seventy Apostles, the wider circle of disciples distinct from the Twelve. His inclusion among them is supported by early lists, including one attributed to Hippolytus (c. 170-235) and a tradition under the name of Dorotheus.
Greek, Latin, and Alexandrian traditions agree in describing him as of Jewish Cypriot origin and as the brother of the Apostle Barnabas. He is also grouped among the assistants of the Apostle Andrew, alongside Urban of Macedonia, Stachys, Ampliatus, Apelles of Heraklion, and Narcissus of Athens, figures associated with the greetings of Romans 16:8-11.