In these enactments the Lithuanian ruler exhibits, like Casimir, an enlightened solicitude for a peaceful relationship between Jews and Christians and for the inner welfare of the Jewish communities. Under the laws enacted by Vitovt the Jews of Lithuania formed a class of free citizens, standing under the immediate protection of the Grand Duke and his local administration. They lived in independent communities, enjoying autonomy in their internal affairs as far as religion and property are concerned, while in criminal affairs they were liable to the court of the local starosta[38] or sub-starosta, and, in particularly important cases, to the court of the Grand Duke himself. The law guaranteed to the Jews inviolability of person and property, liberty of religion, the right of free transit, the free pursuit of commerce and trade, on equal terms with the Christians. The Lithuanian Jews carried on business on the market-places or in shops, they plied all kinds of trades, and occasionally engaged in agriculture. Men of wealth lent money on interest, leased from the Grand Duke the customs duties, the revenues on spirits, and other taxes. They held estates either in their own right or in the form of land leases. The taxes which they paid into the exchequer were adapted to the character of their occupations, and on the whole were not burdensome. Aside from the Rabbanite Jews there existed in Lithuania Karaites, who had immigrated from the Crimea, and had established themselves in the regions of Troki and Lutzk. Accordingly the position of the Jews was more favorable in Lithuania than in Poland. Jewish immigrants, on their way from Germany to Poland, frequently went as far as Lithuania and settled there permanently. Lithuania formed the extreme boundary in the eastward movement of the Jews, Russia and Muscovy being almost entirely closed to them. 6. THE CONFLICT BETWEEN ROYALTY AND CLERGY UNDER CASIMIR IV. AND HIS SONS The conflict of tendencies in the Polish legislation concerning the Jews manifested itself with particular violence in the reign of Casimir IV., the third king of the Yaghello dynasty. The attitude of Casimir IV. (1447-1492), who was imbued with the ideas of the humanistic movement then in vogue, was at first that of a wise ruler, the guardian of the common interests of his subjects. As Grand Duke of Lithuania he had followed the liberal Jewish policies of his predecessor Vitovt. He protected the personal and communal rights of both the Rabbanite and Karaite Jews--to the latter he granted, in 1441, the Magdeburg Law--and he frequently availed himself of the services of enterprising Jewish financiers and tax-farmers to increase the revenues of the state.