- Apr 7 Jean-Baptiste de la Salle, French priest and saint of the Catholic Church, dies at 67
- Apr 15 Johann Friedrich Treiber, German historian & composer, dies at 76
- Apr 15 Françoise d'Aubigné, Marquise de Maintenon, second wife of Louis XIV of France, dies at 83
- Apr 21 Philippe de la Hire, French mathematician and historian (b. 1640)