Columbia subject headings:
Harvard subject headings:
Hammudid dynasty.
Omayyads in Spain.
Sicily (Italy)--History--1016-1194
Spain--History--711-1516.
Umayyad dynasty.
Princeton subject headings:
Arabs--Italy--Sicily--History.
Arabs--Spain--History.
Christianity and other religions--Islam--History.
Islam--Italy--Sicily--History.
Islam--Relations--Christianity--History.
Islam--Spain--History.
Muslims--Italy--Sicily--History.
Muslims--Spain--History.
Sicily (Italy)--History--1016-1194.
Spain--History--711-1516.