Columbia subject headings:
Architecture--Italy--Piacenza--History--15th century.
Architecture--Italy--Piacenza--History--16th century.
Piacenza (Italy)--Buildings, structures, etc.
Harvard subject headings:
Architecture, Renaissance--Italy--Piacenza.
Architecture--Italy--Piacenza--History--15th century.
Architecture--Italy--Piacenza--History--16th century.
Piacenza (Italy)--Buildings, structures, etc.
Princeton subject headings:
Architecture, Renaissance--Italy--Piacenza.
Architecture--Italy--Piacenza--History--15th century.
Architecture--Italy--Piacenza--History--16th century.
Piacenza (Italy)--Buildings, structures, etc.