Isabella the Catholic sends her daughter Juana to Flanders to marry Felipe el Hermoso. It is a marriage of a political nature that serves to seal and guarantee a dynastic alliance between the Catholic Monarchs and the Emperor of Germany Maximilian I, with the aim of isolating France. Following the same policy, the marriage of Catherine and Henry VIII of England had been arranged. However, Juana, madly in love with her husband, could not bear her infidelities; her excessive love frequently led to terrible attacks of jealousy. This situation, together with the intrigues of the court, contributed to the deterioration of the marital relationship. (FILMAFFINITY)