Constantine X Doukas aut Dulio, ut Latinized Ducas (Greek, Κωνσταντῖνος Ι Δούκας, Kōnstantinos Doukas X) (MVI - MLXVII May XXII) De imperatoris et Imperii Byzantini positis in a XXIV MLIX November XXII Maii MLXVII. [Romanos IV Diogenes][Graecae linguae]