- Apr 12 Carl Joseph Toeschi, German composer, dies at 56
- Apr 12 Charles-Antoine Campion, Italian composer, dies at 67
- Apr 15 Giuseppe Bonno, Austrian composer, dies at 77
- Apr 16 George-Louis Leclerc, count de Buffon, French naturalist and writer on natural history (Histoire naturelle, générale et particulière), dies at 80
- Apr 22 Zacharias H Alewijn, Dutch poet, dies at 46