- Sep 3 Johann Theodor of Bavaria, Prince-Bishop of Regensburg, Freising and Liège, born in Munich, Germany (d. 1763)
- Sep 7 Jean Monnet, French composer, born in Condrieu, Rhône (d. 1785)
- Sep 23 Jean-Marie Leclair le cadet (the younger), French composer, born in Lyon, France (d. 1777)
- Sep 29 François Boucher, French Rococo painter commissioned by Madame de Pompadour, born in Paris, France (d. 1770)