Stephen Batory intervened on behalf of the Jews of Posen, who had long been oppressed by a hostile magistracy. Setting aside the draconian regulations of the city fathers, the commercial rivals of the Jews, he permitted the latter to hire business premises in all parts of the city and ply their trade even on the days of the Christian festivals. Anticipating the possibility of retaliatory measures on the part of the townspeople, the King impressed upon the magistracy the duty of safeguarding the inviolability of life and property in the city, at the risk of incurring the severest penalties in the case of neglect (1577). All these warnings, however, were powerless to avert a catastrophe. Three months after the promulgation of the royal edict the Jewish quarter in Posen was attacked by the mob, which looted Jewish property and killed a number of Jews. Ostensibly the riot was started because of the refusal of the Jews to allow one of their coreligionists, who was on the point of accepting baptism, to meet his wife. In reality this was nothing but a pretext. The attack had been prepared by the Christian merchants, who could not reconcile themselves to the extension of the commercial rights of their competitors. Batory imposed a heavy fine on the Posen magistracy for having failed to stop the disorders. Only when the members of the magistracy declared under oath that they had been entirely ignorant of the plot was the fine revoked. As far as the Jews are concerned, Stephen Batory remained loyal to the traditions of a more liberal age, at a time when the Polish populace was already inoculated with the ideas of the "Catholic reaction" imported from Western Europe--ideas which in other respects the King himself was unable to resist. It was during his reign that the Jesuits, Peter Skarga and others, made their appearance as an active, organized body. Batory extended his patronage to them, and intrusted them with the management of the academy established by him at Vilna. Was it possible for the King to foresee all the evil, darkness, and intolerance which these Jesuit schools would spread all over Poland? Could it have occurred to him that in these seats of learning, which soon monopolized the education of the ruling as well as the middle classes, one of the chief subjects of instruction would be a systematic course in Jew-baiting? 4. SHLAKHTA AND ROYALTY IN THE REIGNS OF SIGISMUND III. AND VLADISLAV IV.