Columbia subject headings:
Castilla y León (Spain)--History.
Cities and towns, Medieval--Spain--Castilla y León.
Spain--History--711-1516.
Harvard subject headings:
Castile (Spain)--History.
Castilla y León (Spain)--History.
Cities and towns, Medieval--Spain--Castile.
Cities and towns, Medieval--Spain--Castilla y León.
Spain--History--711-1516.
Princeton subject headings:
Castilla y León (Spain)--History.
Cities and towns, Medieval--Spain--Castilla y Léon.
Spain--History--711-1516.