Columbia subject headings:
Harvard subject headings:
Cattedrale di Palermo.
Palermo (Italy)--Antiquities.
Sicily (Italy)--Kings and rulers--Tombs.
Tombs--Italy--Palermo.
Princeton subject headings:
Cattedrale di Palermo.
Palermo (Italy)--Antiquities.
Sicily (Italy)--Kings and rulers--Tombs.
Tombs--Italy--Palermo.