Columbia subject headings:
Harvard subject headings:
Alexander VI, Pope, 1431-1503--Congresses.
Art, Renaissance--Italy--Rome--Congresses.
Papal States--History--1417-1605--Congresses.
Rome (Italy)--History--1420-1798--Congresses.
Princeton subject headings:
Alexander VI, Pope, 1431-1503--Congresses.
Art, Renaissance--Italy--Rome--Congresses.
Catholic Church--Foreign relations--Europe--Congresses.
Papal states--History--1417-1605--Congresses.
Rome (Italy)--History--1420-1798--Congresses.