Columbia subject headings:
Harvard subject headings:
Art patronage--Europe--History--To 1500--Congresses.
Art patronage--Italy--History--To 1500--Congresses.
Art, Medieval--Congresses
Art, Medieval--Italy--Congresses.
Civilization, Medieval--Congresses
Princeton subject headings:
Art patronage--Europe--History--To 1500--Congresses.
Art patronage--Italy--History--To 1500--Congresses.
Art, Medieval--Congresses.
Art, Medieval--Italy--Congresses.
Civilization, Medieval--Congresses.