Some wealthy Jews, probably relying upon the favorable position of their friends at court, carried on money transactions in an unscrupulous manner. They extorted a high rate of interest, and mercilessly persecuted their dilatory Christian debtors. The king himself encouraged the usury of the Jews and Moors, because he gained advantage therefrom. The complaints of the people against the Jewish and Mahometan usurers grew very numerous. The cortes of Madrid, Valladolid and other cities made this point the subject of petitions presented to the king, demanding the abolition of these abuses, and the king was compelled to yield to their entreaty. The minds of the people, however, remained embittered against the Jews. The cortes of Madrid thereupon called for several restrictive laws against the Jews, such as, that they should not be allowed to acquire landed property, and that Jewish ministers of finance and farmers of taxes should not be appointed (1329). Alfonso replied, that, in the main, things should continue as they had been before. Don Samuel Ibn-Wakar rose even higher in the royal favor. Don Alfonso intrusted him with the farming of the revenues derived from the importation of goods from the kingdom of Granada. He, moreover, obtained the privilege empowering him to issue the coinage of the realm at a lower standard. Joseph of Ecija now became jealous and offered a higher sum for the right of farming the import-taxes from Granada. When he thought he had supplanted his rival, the latter dealt him a severe blow. Ibn-Wakar succeeded in persuading the king that it would be more advantageous to the people of Castile to carry the protective system to its uttermost limits, and prohibit all imports from the neighboring Moorish kingdom (1330-1331). Whilst the two Jewish courtiers were striving to injure each other, the enemies of the Jews were busily at work to imperil their reputation and the existence of all the Castilian congregations. They inflamed the minds of the people by representing to them that, owing to the depreciation in the value of money, brought about by the farmer of the coinage, Ibn-Wakar, the price of the necessaries of life had risen, these articles being exported to the neighboring countries, where they were bartered for silver, which had a higher value in their own land. The enemies of the Jews also brought the influence of the church to bear to arouse the prejudices of the king against all the Jews. Their champion was a Jew, who no sooner had embraced Christianity, than he became a fanatical persecutor of his brethren. This was the infamous Abner, the forerunner of the baptized and unbaptized Jew-haters, who prepared, and at length accomplished, the humiliation and banishment of the Spanish Jews.