Columbia subject headings:
Painting, Gothic--Italy--Umbria.
Painting, Italian--Italy--Umbria.
Painting, Renaissance--Italy--Umbria.
Harvard subject headings:
Painting, Gothic--Italy--Umbria.
Painting, Italian--Italy--Umbria.
Painting, Renaissance--Italy--Umbria.
Princeton subject headings:
Painting, Gothic--Italy--Umbria.
Painting, Italian--Italy--Umbria.
Painting, Renaissance--Italy--Umbria.