The Theory of Translatio Imperii in Twelfth-Century Byzantine Historiography

The theory of translatio imperii, which explains the transfer of imperial authority from one polity to another, occupies a prominent place in the historiography of twelfth-century Byzantium. Byzantine historians such as Anna Comnena and John Zonaras articulated this theory in response to both historical developments and ideological challenges. They traced the succession of emperors and the relocation of the imperial capital from Rome to Constantinople, emphasizing the continuity of Roman authority within the Byzantine state. Their writings served not only to assert the legitimacy and universality of Byzantine imperial power but also to defend the Orthodox identity of the empire against competing Western interpretations of imperial succession. By situating Byzantium at the center of a transimperial narrative, these historians sought to reinforce the empire's political and cultural primacy, demonstrating that authority and civilization had been transferred, yet remained unbroken under Constantinople’s rule. This study examines the ways in which twelfth-century Byzantine writers employed translatio imperii to negotiate imperial ideology, historical memory, and cultural identity.