Sep 18 Gregory XVI [Bartolomeo Alberto Mauro Cappellari], Pope (1831-1846), born in Belluno, Venetia, Austrian Empire (d. 1846)
Sep 18 Oliver Holden, American composer, born in Shirley, Massachusetts (d. 1844)
Sep 22 Paolo Ruffini, Italian mathematician (d. 1822)
Sep 25 Michał Ogiński, Polish politician, violinist, balalaika player, and composer (Farewell to My Homeland), born in Guzów, Kingdom of Poland (d. 1833)
Sep 30 José María Morelos, Mexican revolutionary (d. 1815)