Columbia subject headings:
Altarpieces, Italian--Italy--Bologna.
Altarpieces, Italian--Italy--Florence.
Christianity and art--Catholic Church--Italy--Bologna.
Christianity and art--Catholic Church--Italy--Florence.
Counter-Reformation in art.
Harvard subject headings:
Altarpieces, Italian--Italy--Bologna.
Altarpieces, Italian--Italy--Florence.
Christianity and art--Catholic Church.
Christianity and art--Italy--Bologna--Catholic Church.
Christianity and art--Italy--Florence--Catholic Church.
Counter-Reformation in art.
Princeton subject headings:
Altarpieces, Italian--Italy--Bologna.
Altarpieces, Italian--Italy--Florence.
Altars--Italy--Bologna.
Altars--Italy--Florence.
Christian art and symbolism--Italy--Bologna.
Christian art and symbolism--Italy--Florence.