It would be wearisome to follow in detail the proceedings which dragged their slow length along. Additional witnesses came forward, whose depositions had to go through the usual formalities; Fray Luis presented numberless papers as points occurred to him; he defended himself brilliantly and, through the course of the trial there were few of the customary prolonged intervals, for his nervous impatience kept him constantly plying the tribunal with arguments and appeals which it received with its habitual impassiveness. At length, after two years, early in March, 1574, it decided that there was no ground for suspicion against him in the thirty articles drawn from the testimony of the witnesses, while he could not be prosecuted criminally on the seventeen propositions extracted from his lecture on the Vulgate, seeing that he had spontaneously presented them and submitted himself to the Church. The fiscal, however, appealed from this to the Suprema and his appeal must have been successful, for the trial took a fresh start.[343] [Sidenote: _LUIS DE LEON_] After some intermediate proceedings, Fray Luis, on April 1st was told to select _patrones theólogos_ to assist in his defence. He at once named Dr. Sebastian Pérez, professor in the royal college which Philip II had founded at Párraces, in connection with San Lorenzo del Escorial, and two days later he added other names. In place of accepting them the tribunal endeavored to compel him to take men of whom he knew nothing and who, in reality, were the calificadores who had already condemned his propositions. The struggle continued until, on August 3d, the Suprema wrote that he could have Pérez, but his limpieza must first be proved and Philip's consent to his absence be obtained. We have seen how prolonged, costly and anxious were investigations into limpieza and, as Fray Luis remarked, this was to grant and to refuse in the same breath. At last, after endless discussions, in October he despairingly accepted Dr. Mancio, a Dominican and a leading professor of theology at Salamanca. Mancio came in October, again towards the end of December, and finally on March 30, 1575, while Fray Luis meanwhile was eating his heart in despair. At length, on April 7th Mancio approved of Fray Luis's defence, declaring that he had satisfied all the articles, both the series of seventeen and that of thirty, which had been proved against him or which he had admitted having uttered.[344]