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Prince of Smolensk was the full title bestowed upon Mikhail Illarionovich Kutuzov, a renowned Russian military commander. This title was conferred upon him in recognition of his decisive victory over Napoleon's Grande Armée at the Battle of Smolensk in 1812. Kutuzov's strategic brilliance and leadership during this pivotal battle earned him widespread acclaim and cemented his legacy as one of Russia's greatest military leaders.