Columbia subject headings:
Architecture, Medieval--Italy--Montefeltro.
Convents--Italy--Montefeltro--History.
Excavations (Archaeology)--Italy--Montefeltro.
Harvard subject headings:
Architecture, Medieval--Italy--Montefeltro.
Church architecture--Italy--Montefeltro.
Church decoration and ornament--Italy--Montefeltro.
Convents--Italy--Montefeltro--History.
Convents--Italy--Montefeltro.
Excavations (Archaeology)--Italy--Montefeltro.
Montefeltro (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Medieval--Italy--Montefeltro.
Convents--Italy--Montefeltro--History.
Excavations (Archaeology)--Italy--Montefeltro.