Lavr Georgiyevich Kornilov (Russian: Лавр Георгиевич Корнилов) (August 18, 1870-April 13, 1918) was a senior Russian army general during World War I and the ensuing Russian Civil War. He is today best remembered for the Kornilov Affair, an unsuccessful attempt in August/September 1917 to overthrow Alexander Kerensky's Provisional Government which led to Alexander Kerensky freeing the Bolsheviks. Wikipedia
On July 18, general Brussilov was replaced by general Lavr Kornilov, an adventurer who, unlike most other members of the officer caste, was not an aristocrat but the son of a Cossack smallholder. www.marxist.com/bolshevism/part6-6.html
The definitive Wikipedia entry for Lavr Kornilov. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Lavr_Kornilov