- Nikolai Mezentsov
Nikolai Vladimirovich Mezentsov ( _ru. Николай Владимирович Мезенцов; April 4/23 (OS/NS), 1827 – August 4/16 (OS/NS), 1878) was a Russian
statesman ,adjutant general (1871) and member of theState Council of Imperial Russia (1877).Mezentsov began his military career in 1845. He participated in the
Crimean War of 1853-1856. In 1864, he was appointed Chief of Staff of theGendarmery Corps; in 1874, Deputy Chief of Gendarmery; and finally, in 1876, Chief of Gendarmery and Chief of the "Third Department " (Третье отделение; Political Surveillance and Investigations Department) ofHis Imperial Highness's Personal Chancellery .Mezentsov was assassinated in 1878 by
Sergey Kravchinsky in response to the execution of therevolutionary Ivan Kovalsky .
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