The extent of Zenobia's territorial control during her early reign is debated; according to the historian Fergus Millar, her authority was confined to Palmyra and Emesa until 270. If this was the case, the events of 270 (which saw Zenobia's conquest of the Levant and Egypt) are extraordinary. It is more likely that the queen ruled the territories controlled by her late husband, a view supported by Southern and the historian Udo Hartmann, and backed by ancient sources (such as the Roman historian Eutropius, who wrote that the queen inherited her husband's power). The "Augustan History" also mentioned that Zenobia took control of the East during Gallienus' reign. Further evidence of extended territorial control was a statement by the Byzantine historian Zosimus, who wrote that the queen had a residence in Antioch.