Columbia subject headings:
Harvard subject headings:
Catholic Church--Foreign relations--Great Britain.
Catholic Church--Foreign relations--Italy.
Church and state--Italy.
Great Britain--Foreign relations--Catholic Church.
Italy--History--1849-1870.
Italy--Relations--Catholic Church.
Roman question.
Princeton subject headings:
Catholic Church--Foreign relations--Great Britain.
Catholic Church--Foreign relations--Italy.
Church and state--Italy.
Great Britain--Foreign relations--Catholic Church.
Italy--Foreign relations--Catholic Church.
Italy--History--1849-1870.
Roman question.