The Exilarchs, professed scions of the biblical Davidic royal line, were leaders of the Jews of Babylonia in antiquity. They were said to be powerful political figures and to lead a decadent lifestyle. Their princely trappings and high-handed manner were legend. They were reported to be completely assimilated into Persian culture. Geoffrey Herman examines the evidence, culled mainly from the Talmudic and Geonic literature, subjecting the institution of the Exilarchate to literary-historical and source-critical analysis. In addition, Herman innovatively utilizes comparative sources from the fields of Iranian studies and Persian Christianity to find the truth underlying the accounts of the historical Exilarchs.