- Jul 12 Dolley Madison, American 4th First Lady Of The United States (1809-17) as wife of President James Madison, dies at 81 [1]
- Jul 28 Charles Albert, King of Sardinia (1831-49), dies at 50
- Jul 30 Jacob Perkins, American inventor (father of the refrigerator), dies at 83
- Jul 31 Sándor Petőfi, Hungarian poet (A virágnak megtiltani nem lehet - You Cannot Forbid the Flower), and revolutionary, last seen alive at the Battle of Segesvár (Transylvania), presumed killed in action at 26
Assassination
Car Crash
Hanging
Killed in Action
Plane Crash
Poisoning