Columbia subject headings:
Church lands--Italy--Lazio--History--To 1500.
Harvard subject headings:
Church lands--Italy--Lazio--History.
Princeton subject headings:
Catholic Church--Italy--Lazio--Government.
Catholic Church--Italy--Lazio--History.
Church lands--Italy--Lazio--History--To 1500.
Church property--Italy--Lazio--History--To 1500.