Columbia subject headings:
Catholic Church--Political activity--Italy.
Church and state--Italy.
Italy--Foreign relations--1849-1870.
Roman question.
Harvard subject headings:
Catholic Church--Italy--Political activity.
Church and state--Italy.
Italy--Foreign relations--1849-1870.
Roman question.
Princeton subject headings:
Catholic Church--Italy--Political activity.
Church and state--Italy.
Italy--Foreign relations--1849-1870.
Roman question.