Erich von Manstein
He studied at the "Hauptkadettenanstalt" in Lichterfelde from 1896 to 1900. He was promoted to "Leutnant" on 22 March 1900 and was assigned to the 3rd Foot Guards, where he befriended fellow junior officers Oskar von Hindenburg, Kurt von Hammerstein-Equord and Erich von Manstein. From 1 November 1906 to 31 October 1909, he served as adjutant of the "Fusilier" battalion of his regiment.