. "Duchies of Rome" . . . . . . "Roman territory" . "Rome" . . . . "dux of Rome" . "Roman duchy" . "''dux'' of Rome" . . . . "Ducatus Romanus" . "duchy of Rome" . "ducatus Romanus" . . . . . "Rome, Duchy of" . . "Kingdom of Rome" . . . . "Duchy of Rome" . . "Duchy of Rome" . . .