A brief history of the Jews and Conversos in Castile, from the 11th century until the expulsion. Focuses on the attitudes of Christians towards Jews. States that the "great depression" of the 14th century (the Black Death, the economic crisis, and the unending wars between Pedro I and Enrique de Trastámara) put an end to the already difficult coexistence between Jews and Christians, leading to the persecution of the Conversos and finally the expulsion of the Jews.