At first mild measures were to be tried. Cardinal Mendoza, Archbishop of Seville, had drawn up a catechism instructing his clergy to spare no pains in illuminating the benighted Israelites by a candid exposition of the true principles of Christianity. Progress was slow, and after two years the results were so meagre that it was thought necessary to proceed to the nomination of inquisitors, and two Dominican monks, Fra Miguel de Morillo, and Juan de San Martin, were appointed with full powers, assisted by an assessor and a procurator fiscal. The Jews played into the hands of their tormentors. Great numbers had been terrified into apostasy by the unrelenting hostility of the people. Their only escape from the furious attacks made upon them had been conversion to Christianity, often quite feigned and unreal. The proselytising priests, however, claimed to have done wonders; one, St. Vincent Ferrer, a Dominican of Valencia, had by means of his eloquence and the miraculous power vouchsafed him, "changed the hearts of no less than thirty-five thousand of house of Judah." These numerous converts were of course unlikely to be very tenacious in their profession of the new faith, and not strangely laid themselves open to constant suspicion. Many were denounced and charged with backsliding, many more boldly reverted to Judaism, or secretly performed their old rites. Now uncompromising war was to be waged against the backsliding "new Christians" or Conversos. The inquisitors installed themselves in Seville, and made the Dominican convent of San Pablo their first headquarters, but this soon proved quite insufficient in size and they were allowed to occupy the fortress of the Triana, the great fortress of Seville, on the right bank of the Guadalquivir, the immense size and gloomy dungeons of which were especially suitable. This part of the city was much exposed to inundations, and when, in 1626, it was threatened with destruction by an unusually high flood, the seat of the tribunal was removed to the palace of the Caballeros Tellos Taveros in the parish of San Marco. In 1639 it returned to the Triana which had been repaired, and remained there till 1789, when further encroachments of the river caused it to be finally transferred to the College of Las Beccas. The Triana is now a low suburb, inhabited principally by gipsies and the lower classes. It was at one time the potters' quarter where the famous _azulejo_ tiles were made, and its factories to-day produce the well known majolica vases and plates with surface of metallic lustre.