- Apr 3 Sigismund Ritter von Neukomm, Austrian pianist, organist, composer and kapellmeister, dies at 79
- Apr 7 Anton Diabelli, Austria publisher and composer, dies at 76
- Apr 16 Johann Baptist Cramer, German-British pianist, composer and music publisher, dies at 87
- Apr 28 Johannes Peter Müller, German physiologist, made first distinction between motor and sensory nerves, dies at 56
Assassination
Drug Overdose
Gunshot Wound
Murder
Plane Crash
Suicide