Columbia subject headings:
Frederick II, Holy Roman Emperor, 1194-1250.
Law, Frankish.
Law--Italy--Sicily--History.
Sicily (Italy). Liber Augustalis.
Harvard subject headings:
Frederick II, Holy Roman Emperor, 1194-1250.
Law, Frankish.
Sicily (Italy). Liber augustalis.
Princeton subject headings:
Frederick II, Holy Roman Emperor, 1194-1250.
Law, Frankish.
Law--Italy--Sicily--History.
Sicily (Italy). Liber Augustalis