- Jul 4 István Ferenczy, Hungarian sculptor, dies at 64
Amedeo Avogadro (1776-1856)
Jul 9 Italian scientist who contributed to molecular theory, including what is known as Avogadro's law (6.022 x 10 ^ 23), dies at 79
- Jul 9 James Strang, American Mormon splinter group leader (self-proclaimed king of Beaver Island), dies of his wounds three weeks after being attacked by disaffected members at 43
- Jul 11 Josef Kajetán Tyl, Czech playwright, writer and author of the Czech national anthem (Kde domov můj), dies of an unknown illness at 48
- Jul 15 Margaretha Jacoba de Neufville, Dutch author (The Kidnap), dies at 81
Robert Schumann (1810-1856)
Jul 29 German pianist, composer (Humoresque), and music critic (Neue Zeitschrift für Musik - New Journal for Music), dies at 46
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning