- Sep 2 N. F. S. Grundtvig, Danish writer and philosopher, dies at 88
- Sep 7 Antoni Stolpe, Polish pianist and composer, dies at 21
- Sep 13 Ludwig A Feuerbach, German philosopher (Man what he eats), dies at 68
- Sep 14 Yury Nikolayevich Golitsin, composer, dies at 48
- Sep 18 Charles XV, King of Sweden and Norway (1859-72), dies at 46
- Sep 22 Vladimir Dal, Russian lexicographer, dies at 70