Queen Isabella of Spain

http://www.thehistorychannel.co.uk/classroom/alevel/catholic.htm

http://www.fordham.edu/halsall/jewish/1492-jews-spain1.html

http://www.catholicnews.com/data/stories/cns/20020625.htm

http://www.who2.com/isabellaofcastille.html

http://womenshistory.about.com/library/bio/blbio_isabella_i_spain.htm