Columbia subject headings:
Harvard subject headings:
Liébana (Spain)--History--Sources.
Liébana (Spain)--History.
Santa María de Piasca (Monastery : Liébana, Spain)--History--Sources.
Santa María de Piasca (Monastery : Liébana, Spain)--History.
Spain--History--711-1516.
Princeton subject headings:
Liébana (Spain)--History.
Monasticism and religious orders--Spain--Liébana--History--Middle Ages, 600-1500.
Patronage, Ecclesiastical--Spain--Liébana--History.
Santa María de Piasta (Monastery : Liébana, Spain)--Administration--History.
Santa María de Piasta (Monastery : Liébana, Spain)--History.