Columbia subject headings:
Sculpture, Gothic--Italy--Bologna.
Sculpture, Italian--Italy--Bologna.
Sepulchral monuments--Italy--Bologna.
Sepulchral slabs--Italy--Bologna.
Harvard subject headings:
Sculpture, Gothic--Italy--Bologna.
Sculpture, Italian--Italy--Bologna.
Sepulchral monuments--Italy--Bologna.
Sepulchral slabs--Italy--Bologna.
Princeton subject headings: