Columbia subject headings:
Buelna, Pero Niño, conde de, approximately 1379-approximately 1453.
Castile (Spain)--History--Henry III, 1390-1406.
Harvard subject headings:
Buelna, Pero Niño, conde de, approximately 1379-approximately 1453.
Castile (Spain)--History--Henry III, 1390-1406.
Castile (Spain)--History--John II, 1406-1454.
Nobility--Spain--Castile--Biography.
Princeton subject headings:
Buelna, Pero Niño, conde de, approximately 1379-approximately 1453.
Castile (Spain)--History--Henry III, 1390-1406.