Columbia subject headings:
Plague--Italy--Milan--History--17th century.
Torture--Italy--Milan--History--17th century.
Torture--Italy--Milan--History--18th century.
Harvard subject headings:
Plague--Italy--Milan--History--17th century.
Torture--Italy--Milan--History--17th century.
Torture--Italy--Milan--History--18th century.
Princeton subject headings: