Columbia subject headings:
Gaetani family--Archives.
Naples (Italy)--History--Sources.
Harvard subject headings:
Caetani family--Archives--Catalogs.
Fondazione Camillo Caetani--Catalogs.
Gaetani family--Archives--Catalogs.
Naples (Kingdom)--History--1016-1268--Sources--Bibliography--Catalogs.
Naples (Kingdom)--History--Anjou dynasty, 1268-1442--Sources--Bibliography--Catalogs.
Naples (Kingdom)--History--Spanish rule, 1442-1707--Sources--Bibliography--Catalogs.
Nobility--Italy--Naples (Kingdom)--History--Sources--Bibliography--Catalogs.
Princeton subject headings: