Maximilian I (1832-1867)
Jul 6 Austrian archduke and the 1st and only monarch of the Second Mexican Empire (1864-67), born in Vienna, Austria
- Jul 10 Alvan Graham Clark, American telescope maker and astronomer (Sirius B), born in Fall River, Massachusetts (d. 1897)
- Jul 11 Charilaos Trikoupis, Greek politician (Prime Minister of Greece for 7 times from 1875-1895), born in Nafplion, Greece (d. 1896)
- Jul 17 (Johan) August Söderman, Swedish composer, born in Stockholm, Sweden (d. 1876)
- Jul 21 Henrietta Maria Morse King, American rancher and philanthropist, born in Boonville, Missouri (d. 1925)
- Jul 24 Johann Christoph Lauterbach, German violinist and concert master, born in Kulmbach, Germany (d. 1918)
- Jul 25 Simon Hassler, German-American composer, born in Germany (d. 1901)