Columbia subject headings:
Cities and towns, Medieval--Italy--Romagna.
Cities and towns, Renaissance--Italy--Romagna.
Romagna (Italy)--Civilization.
Harvard subject headings:
Cities and towns, Medieval--Italy--Romagna.
Cities and towns, Renaissance--Italy--Romagna.
Romagna (Italy)--Civilization.
Princeton subject headings:
Cities and towns, Medieval--Italy--Romagna.
Cities and towns, Renaissance--Italy--Romagna.
Romagna (Italy)--Civilization.