Columbia subject headings:
Naples (Kingdom)--Boundaries--Italy--Papal States--History--18th century.
Naples (Kingdom)--Foreign relations--Italy--Papal States.
Naples (Kingdom)--History--1735-1816.
Papal States--Boundaries--Italy--Naples (Kingdom)--History--18th century.
Papal States--Foreign relations--Italy--Naples (Kingdom)
Papal States--History--1605-1799.
Harvard subject headings:
Naples (Kingdom)--Boundaries--Italy--Papal States--History--18th century.
Naples (Kingdom)--Foreign relations--Italy--Papal States.
Naples (Kingdom)--History--1735-1816.
Papal States--Boundaries--Italy--Naples (Kingdom)--History--18th century.
Papal States--Foreign relations--Italy--Naples (Kingdom)
Papal States--History--1605-1799.
Princeton subject headings:
Naples (Kingdom)--Boundaries--Italy--Papal States--History--18th century.
Naples (Kingdom)--Foreign relations--Italy--Papal States.
Naples (Kingdom)--History--1735-1816.
Papal States--Boundaries--Italy--Naples (Kingdom)--History--18th century.
Papal States--Foreign relations--Italy--Naples (Kingdom).
Papal States--History--1605-1799.