- Sep 9 Girolamo Frescobaldi, Italian composer, born in Ferrara, Italy (d. 1643)
Albrecht von Wallenstein (1583-1634)
Sep 24 Bohemian-German general and statesman (Thirty Years' War), born in Heřmanice, Kingdom of Bohemia in the Holy Roman Empire
- Sep 29 Johan VIII, the Younger, count of Nassau-Siegen and field marshal