Columbia subject headings:
Naples (Kingdom)--Armed Forces.
Naples (Kingdom)--History--Anjou dynasty, 1268-1442.
Harvard subject headings:
Charles I, King of Naples, 1226-1285.
Naples (Kingdom)--Armed Forces.
Naples (Kingdom)--History--Anjou dynasty, 1268-1442.
Princeton subject headings:
Military art and science--Italy--Sicily.
Sicily (Italy)--History--1194-1282.