Columbia subject headings:
Civilization, Medieval--13th century.
Manfred, King of Naples and Sicily, approximately 1232-1266.
Naples (Kingdom)--History--1016-1268.
Sicily (Italy)--History--1194-1282.
Harvard subject headings:
Manfred, King of Naples and Sicily, approximately 1232-1266.
Naples (Kingdom)--History--1016-1268.
Sicily (Italy)--History--1194-1282
Princeton subject headings:
Manfred, King of Naples and Sicily, approximately 1232-1266.
Naples (Kingdom)--History--1016-1268.
Sicily (Italy)--History--1194-1282.