Published in 1516, Poul R-''s "Iudeorum Secreta", a translation of Johannes Pfefferkorn''s The Confession of the Jews, was a landmark in the development of anti-Jewish polemics in Denmark. For the first time, Danes were presented with descriptions of Jewish ceremonies that aimed to portray these practices as dangerously anti-Christian, superstitious and deviating from ''real'' Biblical Judaism. Contemporary Judaism is described as a rabbinical construction that is worthy of nothing but ridicule and mockery. The book explores this key text that comprises a valuable source for a range of academic disciplines: the history of anti-semitism, the study of Jewish-Christian relations, social history, the history of religious culture, and medieval and early modern Danish language and literature. This book includes an outline of how Jews were portrayed in medieval Danish vernacular literature; a description of Pfefferkorn''s life and works; a discussion of R-''s translation and publication of Iu