On one occasion he shut himself up for five hours in the stables, and on leaving left twenty horses rendered useless through his ill-treatment, including a favourite one of the King's, which died two days afterwards. He added to these cruel extravagances, the work of an unhinged mind, unkind, barefaced exhibitions of aversion towards his father, of which good proof was found in his papers afterwards. Among these there was a blank book, with the title, written by the Prince's own hand, "The Great Travels of the King Philip II," and then on each of its pages these sneers: "The journey from Madrid to the Pardo," "From the Pardo to the Escorial," "From the Escorial to Aranjuez," "From Aranjuez to Toledo," "From Toledo to Valladolid," "From Valladolid to Burgos," "From Burgos to Madrid," and "From the Pardo to Aranjuez," "From Aranjuez to the Escorial," "From the Escorial to Madrid," etc. In another paper, written also by him, was "The list of my enemies," and the first name that figured on it was "The King, my father." Then followed Ruy Gómez de Silva, the Princess de Évoli, Cardinal Espinosa, the Duque de Alba, and various other lords. On the other side of the paper he had written "List of my friends," "Queen Isabel, who has always been very good to me." And then "D. John of Austria, my much-loved uncle," then Luis Quijada, D. Pedro Fajardo, and very few more. Indeed, Queen Isabel and D. John were the only two people the unlucky Prince spared in his hatred and general rudeness; and this has furnished poets, novelists and pseudo-learned persons with the supposition that between this unfortunate Prince, who never became a man, and the virtuous D. Isabel of the Peace, model of queens and wives, there existed a romantic and incestuous passion, which has served as a base for their midnight studies, calumnies to-day for those who even partially know history. Everyone in Madrid knew of and regretted D. Carlos's mad conduct, and foreign Courts also knew of it, as in their dispatches Ambassadors hastened to send the information, which has enabled posterity to know and judge all these circumstances. But, although D. Carlos's physical and moral defects were so well known, there was not a Princess in Europe then who would not have been very pleased to give her hand to the heir of the most powerful monarch in the world. So the various Courts began to present their candidates, first Queen Catherine de Medicis, who proposed for the Prince of the Asturias her younger daughter Margaret de Valois, the celebrated Margot, afterwards Queen of Navarre. At that time the King of France, Francis II, died, and the Guises, always friendly to Philip II, proposed their niece, the recently widowed Mary Stuart, who was also Queen of Scotland in her own right.