Law of Guarantees
The Law of Guarantees (Italian: Legge delle guarentigie), sometimes also called the Law of Papal Guarantees, was the name given to the law passed by the senate and chamber of the Parliament of the Kingdom of Italy, 13 May 1871, concerning the prerogatives of the Holy See, and the relations between state and church in the Kingdom of Italy. It guaranteed sovereign prerogatives to the pope, who had been deprived of the territory of the Papal States.