Columbia subject headings:
Conradin, Duke of Swabia, 1252-1268.
Italy--History--Germanic rule, 962-1268.
Naples (Kingdom)--History--1016-1268.
Harvard subject headings:
Conradin, Duke of Swabia, 1252-1268.
Italy--History--Germanic rule, 962-1268.
Naples (Kingdom)--History--1016-1268.
Princeton subject headings:
Conradin, Duke of Swabia, 1252-1268.
Naples (Kingdom)--History--1016-1268.