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Józef Zajączek (1752–1826) was a Polish military general and politician. He started his career in the Polish-Lithuanian army as an aide-de-camp to Hetman Franciszek Ksawery Branicki. He was also Branicki's supporter on the political scene, before joining the liberal opposition during the Great Sejm in 1790 and becoming a radical supporter of the Constitution of 3 May 1791. As a military commander, he participated in the Polish–Russian War of 1792 and the Kościuszko Uprising of 1794. After the Partitions of Poland, he joined the Napoleonic Army where he served as a general until his wounding and capture during the French invasion of Russia in 1812. In 1815, he became the first viceroy of the Russian-controlled "Congress" Kingdom of Poland. (Full article...)