Columbia subject headings:
Cantabria (Spain)--Social conditions.
Feudalism--Spain--Cantabria.
Harvard subject headings:
Cantabria (Spain)--Social conditions.
Feudalism--Spain--Cantabria.
Princeton subject headings:
Cantabria (Spain)--Rural conditions.
Cantabria (Spain)--Social conditions.
Feudalism--Spain--Cantabria--History.
Land use, Rural--Spain--Cantabria.