Columbia subject headings:
Castile (Spain)--History--John II, 1406-1454.
Luna, Alvaro de, -1453.
Nobility--Spain--Castile--Biography.
Harvard subject headings:
Castile (Spain)--History--John II, 1406-1454.
Luna, Alvaro de, -1453.
Nobility--Spain--Castile--Biography.
Princeton subject headings: