Columbia subject headings:
Harvard subject headings:
Rome (Italy)--History--1798-1870
Rome (Italy)--History--Revolution of 1848-1849.
Princeton subject headings:
France--Foreign relations--Italy--Papal States.
Papal States--Foreign relations--France.
Pius IX, Pope, 1792-1878.
Rome (Italy)--History--1798-1870.
Rome (Italy)--History--Revolution of 1848-1849.