Columbia subject headings:
Roger II, King of Sicily, 1095-1154.
Sicily (Italy)--History--Roger II, 1105-1154.
Sicily (Italy)--Kings and rulers--Biography.
Harvard subject headings:
Roger II, King of Sicily, 1095-1154.
Sicily (Italy)--History--Roger II, 1105-1154
Sicily (Italy)--Kings and rulers--Biography.
Princeton subject headings:
Roger II, King of Sicily, 1095-1154.
Sicily (Italy)--History--Roger II, 1105-1154.
Sicily (Italy)--Kings and rulers--Biography.