Fortunately, however, for the credit of his reign and for the existence of his transatlantic subjects, he visited his ancestral dominions in the Peninsula in the year 1542, when the condition of the colonies was strongly pressed upon his conscience. In the same year a council of jurists and theologians was convened at Valladolid to devise a system of laws for the American colonies. Las Casas, who had emerged from his cell, appeared before it, when he powerfully pleaded the cause of the oppressed. He showed that, putting aside natural rights, unless the Government should interfere, the native races must be gradually exterminated by the systematic oppression of the Spaniards, and he maintained that it was against the will of God to inflict evil on the plea that good might come of it. His arguments, as might be expected, were met by much opposition, some even of those who sympathized with him deeming that his views were Utopian and impracticable. His eloquence, however, dictated by the best of motives and based upon the foundation of facts, in the end prevailed, and the result was a code of ordinances for all the American colonies, some provisions of which had immediate reference to _Peru_. The natives of _Peru_ were declared vassals of the crown, and their freedom as such was recognised; yet those of the conquerors who might have become lawfully possessed of slaves might still retain them, though at the death of their present proprietors they were to revert to the crown. All slaves, however, should be forfeited by those who had shown themselves, by neglect or ill-usage, unworthy to hold them. Those likewise were to be free who were held by public functionaries, present or past, by ecclesiastics and religious corporations, and by all who had taken a criminal part in the feuds of Almagro and Pizarro. It was further ordered that the Indians should be moderately taxed; that they should not be compelled to labour where they did not choose to, or that, if this were necessary, they should receive fair compensation. The _repartimientos_ of land which were excessive should be reduced; and where proprietors had notoriously been guilty of abuse of their slaves, their estates were to be forfeited.