Columbia subject headings:
Asturias (Spain)--Kings and rulers.
Asturias (Spain)--Politics and government.
Leon (Kingdom)--Kings and rulers.
Leon (Kingdom)--Politics and government.
Monarchy--Spain--Asturias--History.
Monarchy--Spain--Leon (Kingdom)--History.
Harvard subject headings:
Asturias (Spain)--Kings and rulers.
Asturias (Spain)--Politics and government.
Leon (Kingdom)--Kings and rulers.
Leon (Kingdom)--Politics and government.
Monarchy--Spain--Asturias--History.
Monarchy--Spain--Leon (Kingdom)--History.
Princeton subject headings:
Asturias (Spain)--Kings and rulers.
Asturias (Spain)--Politics and government.
Leon (Kingdom)--Kings and rulers.
Leon (Kingdom)--Politics and government.
Monarchy--Spain--Asturias--History.
Monarchy--Spain--Leon (Kingdom)--History.