The queen probably spent most of her reign in Antioch, Syria's administrative capital. Before the monarchy, Palmyra had the institutions of a Greek city (polis) and was ruled by a senate which was responsible for most civil affairs. Odaenathus maintained Palmyra's institutions, as did Zenobia; a Palmyrene inscription after her fall records the name of Septimius Haddudan, a Palmyrene senator. However, the queen apparently ruled autocratically; Septimius Worod, Odaenathus' viceroy and one of Palmyra's most important officials, disappeared from the record after Zenobia's ascent. The queen opened the doors of her government to Eastern nobility. Zenobia's most important courtiers and advisers were her generals, Septemius Zabdas and Septimius Zabbai; both of whom were generals under Odaenathus and received the "gentilicium" (surname) "Septimius" from him.