Columbia subject headings:
Orden de Calatrava--Vállaga.
Vállaga (Spain)--Social conditions.
Harvard subject headings:
Orden de Calatrava--Spain--Vállaga.
Vállaga (Spain)--Rural conditions.
Princeton subject headings:
Orden de Calatrava--History.
Orders of knighthood and chivalry--Spain--Vállaga--History.
Vállaga (Spain)--Economic conditions--History.
Vállaga (Spain)--Social conditions--History.