 The same narrow strip of land broke the connection between their Duchies of Spoleto and Benevento and the main portion of the king's territories in the north.The Lombards made multiple attacks against this front to wrest control of the peninsula from the Byzantines.In 728 the Lombard King Liutprand took the Castle of Sutri, which dominated the highway at Nepi on the road to Perugia.