Mitrofan Petrovich Tchaikovsky (7 April 1840 – 25 March 1903) was an infantry general, commandant of the Ivangorod fortress, commander of the 3rd Army Corps (Russian Empire). Biography Tchaikovsky was born on 7 April 1840. He was educated in the 1st Moscow Cadet Corps, from which he was released on 30 June 1858 as an ensign in the Life Guards Finland Regiment. 30 March 1859 was promoted to second lieutenant, and already 29 May of the same year - on a lieutenant. 21 March 1860 promoted to headquarters captain. Since 7 May 1861, Tchaikovsky was a senior adjutant to the headquarters of the assistant inspector of infantry battalions, and on 6 June of the following year he was promoted to captain. In the same year, he successfully passed the entrance exams to the Nikolaev Academy of the General Staff. At the end of the course at the academy on 10 December 1864 he was appointed senior adjutant to the headquarters of the 3rd Cavalry Division (Russian Empire), and then successively held the position of senior adjutant in the interim administration of the Warsaw Guard detachment (3 July 1866) and was on assignments at the headquarters of the Warsaw Military District (from 31 July 1867). On 7 December 1868, Tchaikovsky was transferred to Turkestan and appointed to be at the disposal of the Turkestan Governor-General, Adjutant General K.P. Kaufman (at the same time, he was formally classified as a weapon without a position). From 5 May 1869 he was an assistant to the Issyk-Kul district chief, on 14 March 1870 he was appointed head of this county and on 19 November of the same year he was transferred to the same position in Tokmak district. From 16 June 1872 to 14 August 1874 he commanded the 4th Turkestan Line Battalion, with which in 1873 he took part in an expedition against the Khanate of Khiva. For military distinctions in this campaign he was awarded the orders of St. Stanislav 2nd degree with the imperial crown and swords and St. 4th degree Vladimir with swords and bow. Then he was promoted to colonel. On 10 April 1875, Tchaikovsky was appointed to the post of chief of staff of the 29th Infantry Division, and on 21 August 1877 he took the same position in the 3rd Grenadier Division (Russian Empire). He took part in the Russo-Turkish War (1877-78). For military distinctions he was