Columbia subject headings:
Como (Italy)--History--14th century.
Como (Italy)--History--15th century.
Feudalism--Italy--Como--History.
Harvard subject headings:
Catholic Church. Diocese of Como (Italy)--History.
Como (Italy)--History--14th century.
Como (Italy)--History--15th century.
Feudalism--Italy--Como--History.
Princeton subject headings:
Como (Italy)--History.
Feudalism--Italy--Como--History.