as Saxon minister, a mission which failed completely. Czartoryski's pro-Russian policy had by this time estranged Brühl, but he frustrated all the plans of the Saxon court by dissolving the diets of 1760, 1761 and 1762. In 1763 he went a step further and proposed the dethronement of Augustus III, who however died the same year. During the ensuing interregnum, the prince chancellor worked at the convocation diet of 1764 to reform the constitution, and it was with displeasure that he saw his nephew Stanisław finally elected king Stanisław II August in 1765. But though disgusted with the weakness of the king and obliged to abandon at last all hope of the amelioration of his country, Czartoryski continued to hold office till the last, and as chancellor of Lithuania he sealed all the partition treaties. Czartoryski died in the full possession of his faculties and was considered by the Russian minister Repnin "the soundest head in the kingdom." He was not the sole reforming statesman of his day, and despite his services there were occasions when the partisan in him got the better of the statesman. His foreign policy, moreover, was vacillating, and he changed his "system" frequently. Family Prince Michał Czartoryski married Countess Elenora Monika Waldstein on 30 October 1726 in Prague. They had four children (three daughters, one son): Antonina (1728 - 26 February 1746, Warsaw), who married Jerzy Detloff Flemming on 13 February 1744 in Warsaw. Konstancja (1729-1749), second wife of Jerzy Flemming. Aleksandra (1730-1798) Antoni (1732-1753) Bibliography Władysław Konopczyński, Michał Fryderyk Czartoryski, w: Polski Słownik Biograficzny, t. IV, Kraków 1938 s. 288-294. Krystyna Zienkowska, Stanisław August Poniatowski, Wrocław 1998. Wojciech Kriegseisen, Sejmiki Rzeczypospolitej Szlacheckiej w XVII i XVIII wieku, Warszawa 1991. Marcin Matuszewicz, Diariusz życia mego, tom 1 1714-1757, oprac. B. Królikowski, Warszawa 1986. Polska stanisławowska w oczach cudzoziemców, tom I, oprac. W. Zawadzki, Warszawa 1963. Polska stanisławowska w oczach cudzoziemców, tom II, oprac. W. Zawadzki, Warszawa 1963. Kazimierz Waliszewski, Potoccy i Czartoryscy. Walka stronnictw i programów politycznych. Przed upadkiem Rzeczypospolitej 1734 – 1763, Kraków 1887. Emanuel Rostworowski, O polską koronę. Polityka Francji w latach 1725 – 1733, Wrocław 1958. References 1696 births 1775 deaths People from Rivne Oblast Secular senators of the Polish–Lithuanian Commonwealth Nobility from Warsaw 18th-century Polish–Lithuanian politicians Michael Frederick Czartoryski Grand Chancellors of the Grand Duchy of Lithuania Deputy Chancellors of the Grand Duchy of Lithuania Recipients of the Order of the