the title of King. The Duchy of Savoy remained as a state of the new country until the provincial reform of King Charles Albert, at which point the kingdom became a unitary state. References Sources Savoy History of Piedmont History of Turin Upper Rhenish Circle States and territories established in 1416 States and territories disestablished in 1713 1410s establishments in the Holy Roman Empire 1416 establishments in Europe 1710s disestablishments in the Holy Roman Empire 1713 disestablishments in Italy Kingdom of Sardinia History of Aosta Valley Former monarchies of Europe