Pope Pius VII was head of the Catholic Church from 14 March 1800 to his death in August 1823. He ruled the Papal States from June 1800 to 17 May 1809 and again from 1814 to his death. Chiaramonti was also a monk of the Order of Saint Benedict in addition to being a well-known theologian and bishop.

The Papal States, officially the State of the Church, were a conglomeration of territories on the Apennine Peninsula under the direct sovereign rule of the Pope from 756 until 1870. They were among the major states of Italy from the 8th century until the Unification of Italy, between 1859 and 1870.