Columbia subject headings:
Harvard subject headings:
Castles--Italy--Celano--History.
Christian art and symbolism--Italy--Celano--Catalogs.
Museo d'arte sacra della Marsica (Celano, Italy)--Catalogs.
Princeton subject headings:
Castello Piccolomini (Celano, Italy)
Castles--Italy--Celano--History.
Christian art and symbolism--Italy--Celano.