Columbia subject headings:
Harvard subject headings:
Avila (Spain : Province)--History--Sources--Bibliography--Catalogs.
Feudalism--Spain--Avila (Province)--History--Sources--Bibliography--Catalogs.
Land tenure--Spain--Avila (Province)--History--Sources--Bibliography--Catalogs.
Primogeniture--Spain--Avila (Province)--History--Sources--Bibliography--Catalogs.
Verdugo family--Archives--Catalogs.
Princeton subject headings:
Archives--Spain--Avila (Province).
Avila (Spain : Province)--History--Sources--Catalogs.
Family archives--Spain--Avila (Province).
Land tenure--Spain--Avila (Province).
Verdugo family--Archives.