Columbia subject headings:
Glass painting and staining, Medieval--Italy--Umbria--Catalogs.
Reliquaries--Italy--Umbria--Catalogs.
Harvard subject headings:
Christian art and symbolism--Italy--Umbria--Medieval, 500-1500.
Glass underpainting, Medieval--Italy--Umbria.
Glass underpainting, Renaissance--Italy--Umbria.
Glass underpainting--Italy--Umbria.
Princeton subject headings:
Catalogs.
Glass painting and staining, Medieval--Italy--Umbria--Catalogs.
Reliquaries--Italy--Umbria--Catalogs.