By 1071 Robert Guiscard had risen to the height of power in Italy. The grumbling Lombards had been forced to grovel before him, the proud Norman barons recognized him as their unquestioned lord, and one of the greatest medieval popes depended on him for protection. But Robert was still restless and his eyes turned across the seas to the greatest prize of all- Byzantium: Queen of Cities and the capital of the Eastern Roman Empire. Join Lars Brownworth as he looks at Guiscard's final campaign to seize the imperial throne.