Columbia subject headings:
Church and state--Italy--History--19th century.
Great Britain--Foreign relations--1837-1901.
Great Britain--Foreign relations--Italy--Papal States.
Italy--History--1849-1870.
Papacy--History--19th century.
Papal States--Foreign relations--Great Britain.
Papal States--History--1815-1870.
Harvard subject headings:
Church and state--Italy--History--19th century
Great Britain--Foreign relations--1837-1901.
Great Britain--Foreign relations--Papal States.
Italy--History--1849-1870.
Papacy--History--19th century.
Papal States--Foreign relations--Great Britain.
Papal States--History--1815-1870.
Princeton subject headings:
Church and state--Italy--History--19th century.
Great Britain--Foreign relations--1837-1901.
Great Britain--Foreign relations--Papal States.
Italy--History--1849-1870.
Papacy--History--19th century.
Papal States--Foreign relations--Great Britain.
Papal States--History--1815-1870.