Columbia subject headings:
Alfonso VII, The Emperor, King of Castile, 1104-1157.
Spain--History--711-1516.
Spain--Kings and rulers--Biography.
Harvard subject headings:
Alfonso VII, The Emperor, King of Castile, 1104-1157.
Leon (Kingdom)--History.
Leon (Kingdom)--Kings and rulers--Biography.
Princeton subject headings:
Alfonso VII, King of Castile and Leon, 1104-1157.
Spain--History--711-1516.
Spain--Kings and rulers--Biography.