Columbia subject headings:
Alfonso VII, The Emperor, King of Castile, 1104-1157.
Castile (Spain)--History--Alfonso VII, 1126-1157.
Harvard subject headings:
Alfonso VII, The Emperor, King of Castile, 1104-1157.
Castile (Spain)--History--Alfonso VII, 1126-1157.
Princeton subject headings:
AAlfonso VII, The Emperor, King of Castile, 1104-1157.
Castile (Spain)--History--Alfonso VII, 1126-1157.