Columbia subject headings:
Harvard subject headings:
Roger II, King of Sicily, 1095-1154.
Ruggiero I, conte di Sicilia, 1031-1101.
Sicily (Italy)--Civilization
Sicily (Italy)--History--1016-1194
Sicily (Italy)--History--Roger II, 1105-1154
Princeton subject headings:
Roger II, King of Sicily, 1095-1154.
Ruggiero I, conte di Sicilia, 1031-1101.
Sicily (Italy)--Civilization.
Sicily (Italy)--History--1016-1194.
Sicily (Italy)--History--Roger II, 1105-1154.