Tetradrachm - Vonones I

Vonones I came to the Parthian throne as a Roman-educated prince, installed by Augustus after years spent as a diplomatic hostage in Rome — an arrangement that made him deeply suspect to the Parthian nobility. His reign lasted only a few years before Artabanos II drove him out, first to Armenia and eventually into Roman custody, where he died under house arrest around 19 AD. The Sellwood attribution to Artabanos II for the month formula reflects ongoing scholarly debate over die links and regnal chronology that has not been fully resolved.