to the Royal election, where he played a major role as one of the initiators of the reforms of the state. He was the marshal of the Sandomierz voivodeship in the Czartoryski confederation in 1764. In 1764 he was one the electors of Stanisław August Poniatowski from the Sandomierz Province. In 1766 he was once again chosen as a deputy from his province. Having received the marshal's staff in 1766, he was one of the contributed to modernize and expand the capital city of Warsaw, and worked on the reform of the criminal justice system. During the Bar Confederation, he tried to influence strengthen the king in resistance towards Russia, trying to win him over to the side of the Confederates and France. Member of the confederation of 1773. As a member of the delegation to the Partition Sejm (1773–1775), he was a representative of the opposition. However, on 18 September 1773 he signed treaties of cession by the Polish–Lithuanian Commonwealth of the lands seized by Russia, Prussia and Austria in the first partition of Poland. After the first partition, he belonged to the magnate opposition trying to ally with Austria. Openly acting against the king, he received a seat in the Permanent Council. There, he was a Member of the Police Department of the Council in 1779. He donated funds to the astronomical observatory built by Nathanael Matthaeus von Wolf in Gdańsk (Danzig). References Zdanie Lubomirskiego Marszałka W. Koronnego na Sessyi Delegacyiney miane dnia 28 lutego 1775 Roku. Stanisław Lubomirski, Pod władzą księcia Repnina, opracował i wstępem poprzedził Jerzy Łojek, Warszawa 1971 Secular senators of the Polish–Lithuanian Commonwealth Members of the Sejm of the Polish–Lithuanian Commonwealth 1722 births 1782 deaths Stanislaw Lubomirski 1722 Recipients of the Order of the White Eagle (Poland)