Columbia subject headings:
Art patronage--Italy, Central--History--Congresses.
Christian art and symbolism--Italy, Central--Medieval, 500-1500--Congresses.
Maestro di Offida--Congresses.
Harvard subject headings:
Art patronage--Italy, Central--History--Congresses.
Christian art and symbolism--Italy, Central--Medieval, 500-1500--Congresses.
Maestro di Offida--Congresses.
Princeton subject headings:
Art patronage--Italy, Central--History--Congresses.
Christian art and symbolism--Italy, Central--Medieval, 500-1500--Congresses.
Maestro di Offida--Congresses.