Columbia subject headings:
Guardi, Andrea, active 15th century.
Renaissance--Italy.
Sculpture--Italy--Siena.
Urbano, da Cortona, approximately 1426-1504.
Harvard subject headings:
Guardi, Andrea di Francesco, active 1452.
Renaissance--Italy
Sculpture--Italy--Siena.
Urbano da Cortona, active 1446.
Urbano, da Cortona, approximately 1426-1504.
Princeton subject headings:
Guardi, Andrea, 15th century.
Renaissance--Italy.
Sculpture--Italy--Siena.
Urbano da Cortona, fl. 1446.