Columbia subject headings:
Art, Medieval--Italy--Marche.
Art, Medieval--Italy--Vallesina.
Marche (Italy)--Civilization.
Military architecture--Italy--Marche.
Military architecture--Italy--Vallesina.
Vallesina (Italy)--Civilization.
Harvard subject headings:
Architecture, Medieval--Italy--Esino River Valley.
Architecture--Italy--Esino River Valley.
Art, Italian--Italy--Esino River Valley.
Art, Italian--Italy--Vallesina.
Art, Medieval--Italy--Esino River Valley.
Art, Medieval--Italy--Vallesina.
Vallesina (Italy)--Buildings, structures, etc.
Princeton subject headings:
Art, Italian--Italy--Esino River Valley.
Art, Medieval--Italy--Esino River Valley.