Columbia subject headings:
Byzantine Empire--Biography.
Byzantine Empire--Politics and government--527-1081.
Byzantine Empire--Politics and government--To 527.
Elite (Social sciences)--Turkey--Istanbul--History--To 1500.
Turkey--Court and courtiers--History--To 1500.
Harvard subject headings:
Princeton subject headings:
Byzantine Empire--Biography.
Byzantine Empire--Politics and government--527-1081.
Byzantine Empire--Politics and government--To 527.
Elite (Social sciences)--Turkey--Istanbul--History--To 1500.
Turkey--Court and courtiers--History--To 1500.