Columbia subject headings:
Castile (Spain)--Commerce--Great Britain--History.
Castile (Spain)--History--Isabel I, 1474-1504.
Great Britain--Commerce--Spain--Castile--History.
Merchants, Foreign--Spain--Castile--History.
Harvard subject headings:
Princeton subject headings:
Castile (Spain)--Commerce--England.
Castile (Spain)--History.
England--Commerce--Spain--Castile.
Spain--History--711-1516.