Columbia subject headings:
Harvard subject headings:
Italy, Southern--History--1735-1848--Congresses.
Naples (Kingdom)--History--1735-1816--Congresses.
Princeton subject headings:
Naples (Kingdom)--Church history--Congresses.
Naples (Kingdom)--History--1735-1861--Congresses.
Naples (Kingdom)--Politics and government--Congresses.
Naples (Kingdom)--Social conditions--Congresses.