Ludwig Leichhardt
Apr 4 Ludwig Leichhardt, German explorer of northern and central Australia, dies on an expedition at 34
Ludwig Leichhardt
- Apr 8 Domenico Gaetano Maria Donizetti, Italian composer, dies at 50
- Apr 10 Godert van der Capellen, Dutch governor-general (Dutch-Indies), dies at 69
- Apr 24 Francois van Campenhout, Belgian composer (Brabanconne), dies at 69
- Apr 30 Friedrich Freiherr Gagern, German Dutch army commandant, dies at 53