Columbia subject headings:
Leonardo, da Vinci, 1452-1519--Criticism and interpretation.
Tiber River Valley (Italy)--History.
Harvard subject headings:
Art, Italian--Italy--Tiber River Valley.
Art, Renaissance--Italy--Tiber River Valley.
Leonardo, da Vinci, 1452-1519
Tiber River Valley (Italy)--Civilization.
Tiber River Valley (Italy)--History.
Princeton subject headings:
Leonardo, da Vinci, 1452-1519--Criticism and interpretation.
Tiber River Valley (Italy)--History.