Paul von Rennenkampf
Paul von Rennenkampf was a Russian general who served in the Imperial Russian Army for overyears, including during World War I.
Rennenkampf, of Baltic German extraction, was born in 1854 in Konuvere Manor now in Mrjamaa Parish, Rapla County, Estonia. He joined the Imperial Russian Army atand attended the Junker Infantry School in Helsinki. He began his military career with the Lithuanian 5th Lancers Regiment. He graduated at the head of his class from the Nikolaevsky Military Academy in St. Petersburg in 1882. He was assigned as a junior officer to the 14th Army Corps until 1884, and to the Warsaw Military District followed by the Kazan Military District to 1886. Rennenkampf was subsequently a senior aide to the headquarters of the Don Cossacks from March 1888, staff officer to the 2nd Army Corps from October 1889, and Chief of Staff of the Osowiec Fortress from March 1890. The same year he was promoted to colonel. From November 1899, Rennenkampf, as chief of staff of the Transbaikalia region, was promoted to major general.
Source: Wikipedia