We can see here, and in the several reports sent, that Joan had little or no control over herself. In the conflict, daily growing more bitter, between her husband and her father, she swayed from one side to another according to the influences brought to bear upon her. Her gusts of jealous rage and frenzied violence gave to both sides the excuse of calling her mad when it suited them to do so, or to declare that such temporary fits were compatible with general sanity when they wanted her sane. Joan’s affection for her husband was fierce, and monopolous, and his influence over her was great, especially when he appealed to her pride and her rights as Queen of Castile, but her sense of filial duty was also high; and whenever she understood that a measure was intended to be against her father, she indignantly refused to countenance it. Ferdinand knew that the King of France had been enlisted by Philip and Maximilian against him; and that an army was being mustered in Flanders; whilst a project was on foot for Philip to come to Castile without Joan. This he was determined to prevent; and warned his son-in-law that he would not be allowed to act as King without his wife. To this warning Philip retorted by ordering his father-in-law to leave Castile, and return to his own realm of Aragon. In this contest poor hysterical Joan was but a cypher, with her gusts of jealous passion and her lack of fixed resolution. When she had arrived in Flanders after her detention in Spain, she had discovered that her husband, whose coolness she noted from the first, was carrying on a liaison with a lady of the court. We are told that she sought out the lady in a raving fury and seriously injured her; as well as causing all her beautiful hair, of which she was proud, to be cut off close to the scalp. This led to a violent scene between Philip and Joan, in which not only hard words but hard blows were exchanged; and Joan took to her bed, seriously ill both in body and mind. These scenes continued at intervals, either with or without good reason, but with the natural result that Philip in his relations with his father-in-law acted almost independently of his wife; who, as Ferdinand afterwards said, was really a good dutiful daughter, proud of Spain and her people.