Columbia subject headings:
Building--Italy--Campania--History--To 1500--Congresses.
Building--Italy--Lazio--History--To 1500--Congresses.
Harvard subject headings:
Building--Italy--Campania--History--To 1500--Congresses.
Building--Italy--Campania--To 1500--Congresses.
Building--Italy--Lazio--History--To 1500--Congresses.
Building--Italy--Lazio--To 1500--Congresses.
Princeton subject headings:
Building--Italy--Campania--History--To 1500--Congresses.
Building--Italy--Lazio--History--To 1500--Congresses.