Mattias Lang was born in approximately 1784. He 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 Mariental. He is recorded there on the 1834 Census of Mariental and on the 1850 Census of Mariental in Household No. 227 along with a note that he died there in 1850.
- 1834 Census of Mariental.
- 1850 Census of Mariental.
- 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.