Konrad Keil served in Napoleon's army and fought against the Russians. He was captured by the Russians, and in 1812, was settled in the Volga German colony of Zürich. He is recorded there on the 1834 Census of Zürich in Household No. 131 with a note that he moved to another (illegible) colony.
- 1834 Census of Zürich.
- Belousov, S.V. "Prisoners of war of Napoleon's army in the Volga region: the arrangement, content, relationships with the local population." Bulletin of the Samara State University, No. 1 (Samara, Russia: Samara State University, 2006): 48-55.