During the Kościuszko Uprising in 1794 he was a major general and a divisional commander. At the Battle of Szczekociny he saved Kościuszko's life. Then during the siege of Warsaw he was wounded.
To protect family land holdings in Ukraine, Sanguszko refused to participate in Prince Poniatowski's1813 campaign, for which the commander-in-chief, an old friend, punished him harshly with a dishonourable discharge from the army.
Congress of Poland
After the fall of Napoleon, Sanguszko settled on his ancestral lands that included the battlefield of Zieleńce. There he often pondered on past historic events in which he took part and described his thoughts in his "Memoirs".[3] Between 1817–1820 he was the governor marshal of Volhynia.
Memoirs: Wykaz doswiadczen przez ojca dla dzieci w roku 1815 spisany (published 1876 with the title Pamiętnik 1786-1815).
Footnotes
^ abMikulski, Tadeusz; Aleksandrowska, Elżbieta (1970). Oświecenie : hasła osobowe P-Ż, addenda A-O. Bibliografia literatury polskiej „Nowy Korbut”. Vol. 6, part 1: Oświecenie. Warszawa: Państwowy Instytut Wydawniczy. p. 149.
^Kalendarzyk narodowy y obcy na rok ... 1792. ... Warszawa. 1791. p. 324.
^Marszalska, J. M. (1998). Eustachy Erazm Sanguszko i Julia z Lubomirskich Potocka na tle wydarzeń 1794 roku. Tarniny.{{cite book}}: CS1 maint: location missing publisher (link)