During the fourth decade of the sixteenth century the Jewish question became the object of violent disputes at the Polish Diets, the deputies of several regions having received anti-Jewish instructions.[49] Now the controlling factor in the Polish Diets was the Shlakhta, whose attitude towards the Jews was not uniform. The big Shlakhta, the magnates, the owners of huge estates and whole towns, were favorably disposed towards the Jews who lived in their domains, and added to their wealth as farmers and tax-payers. But the petty Shlakhta, the struggling squires, who were looking for places in the civil and state service, arrayed themselves on the side of the burgher class, which had always been hostile to the Jews. This petty Shlakhta bitterly resented the fact that the royal revenues had been turned over to Jewish contractors, who, as collectors of customs and taxes, attained to official dignity, and gradually forced their way into the ranks of the nobility. The income from the collection of the revenues and the influence connected with it this Shlakhta regarded as its inalienable prerogative. The clergy again saw in this enhancement of Jewish influence a serious menace to the Catholic faith, while the urban estates had a vital interest in limiting the commercial rights of the Jews. At the Piotrkov Diet of 1538 the anti-Jewish agitation was carried on with considerable success. It resulted in the adoption of a statute, or a "constitution," containing a separate Jewish section, in which the old canonical laws cropped out: We hereby prescribe and decree--it is stated in that section--that from now on and for all future time all those who manage our revenues must unconditionally be members of the landed nobility, and persons professing the Christian faith.... We ordain for inviolable observance that no Jews shall be intrusted [in the capacity of contractors] with the collection of revenues of any kind. For it is unworthy and contrary to divine right that persons of this description should be admitted to any kind of honors or to the discharge of public functions among Christian people. It is further decreed that the Jews have no right of unrestricted commerce, and can do no business in any locality, except with the special permission of the king or by agreement with the magistracies; in the villages they are forbidden to trade altogether. Pawnbroking and money-lending on the part of Jews are hedged about by a series of oppressive regulations. The capstone of the Piotrkov "constitution" is the following clause: