Columbia subject headings:
Harvard subject headings:
Grail
Military religious orders--Italy--Turin--History.
Symbolism in architecture--Italy--Turin.
Templars--Italy--Turin--History.
Turin (Italy)--Religious life and customs.
Princeton subject headings:
Grail.
Sacra di San Michele (Abbey : Turin, Italy)
Templars--Italy--Piedmont.
Templars--Italy--Turin.