Columbia subject headings:
Church and state--Europe--History--19th century.
Europe--Politics and government--1789-1900.
Pius VII, Pope, 1742-1823.
Popes--Biography.
Harvard subject headings:
Church and state--Europe--History--19th century.
Europe--Politics and government--1789-1900.
Pius VII, Pope, 1742-1823
Popes--Biography
Princeton subject headings:
Church and state--Europe--History--19th century.
Europe--Politics and government--1789-1900.
Pius VII, Pope, 1742-1823.
Popes--Biography.