Papal Fief
Otto made a gift of Imperial rights in Spoleto to the Papal States in 1201, and soon afterward (1213), the duchy was brought under direct papal rule with a governor, usually a cardinal, though it remained a pawn in the struggles of Frederick II until the extinction of the Hohenstaufen.
The territories of Spoleto were annexed to the Papal States and the Kingdom of Naples. The title of Duchy of Spoleto was later used by members of the House of Savoy.
Read more about this topic: Duchy Of Spoleto