Alexander's successor, Sigismund I. Yaghello (1506-1548), King of Poland and Grand Duke of Lithuania, favored a more liberal policy towards his Jewish subjects. Though a staunch Catholic, Sigismund was free from the spirit of anti-Jewish clericalism, and he endeavored to the best of his ability to live up to the principle proclaimed by him, that "equal justice should be meted out to the rich and mighty lords and to the meanest pauper." This lofty principle, so little compatible with the policy of class discrimination, could, however inadequately, be applied only there where the power of royalty was not handicapped by the mighty Shlakhta and the other estates. The only part of the Polish Empire where such a condition still existed in the time of Sigismund I. was Lithuania, the patrimony of the Yaghellos. There the royal, or rather the grand ducal, authority was more extensive and its form of manifestation more patriarchal than in the provinces of the Crown, or Poland proper. By intrusting a large part of the public tax contracts and land leases to the Jewish capitalists, the King could feel easy in his mind as to the integrity of his budget. The general contractor of the customs and other state revenues in Lithuania, Michael Yosefovich (son of Joseph), a Jew from Brest-Litovsk, exercised occasionally also the functions of grand ducal treasurer, being commissioned to pay out of the collected imposts the salaries of the local officials as well as the debts of his royal master. Prompted by the desire of rewarding the services of his financier and at the same time putting the communal affairs of his Jewish subjects in better order, Sigismund appointed Michael Yosefovich to serve as the elder, or, to use the official term, the "senior," of all Lithuanian Jews (1514). The "senior" was invested with far-reaching powers: he had the right of conferring directly with the king in all important Jewish affairs, dispensing justice to his coreligionists in accordance with their own laws, and collecting from them the taxes imposed by the state. He was to be assisted by a rabbi or "doctor," an expert in Jewish law. Whether the Lithuanian Jews acknowledged Michael Yosefovich as their supreme authority is open to doubt. The wealthy contractor, whom the will of the King had placed at the head of the Jews, could not in point of fact preside over their autonomous organization and their judiciary and rabbinate, since what was required was not officials, but men with special knowledge and training. All Michael could do was to act as the official go-between, representing the Jewish communities before the King and defending their rights and privileges as well as their commercial and fiscal interests. In any event Michael was more useful to his coreligionists than his brother Abraham Yosefovich, who, likewise a tax-farmer, sacrificed his Judaism for the sake of a successful career. King Alexander conferred upon Abraham the rank of Starosta of Smolensk,