Columbia subject headings:
Ascetics--Biography.
Biographies.
Monks--Biography.
Valerio, of Bierzo, Saint, -695?--Biography.
Harvard subject headings:
Princeton subject headings:
Christian saints--Spain--Bierzo--Biography--Early works to 1800.
Hermits--Spain--Vierzo--Biography.
Valerio, of Bierzo, Saint, -695?--Early works to 1800.