Louis Ernst Freiherr von Nicolay was a Russian general during the Caucasian War. He converted to the Roman Catholicism taking a name Jean-Louis in the monastic life of the Carthusians.
- Occupation
- military officer, monk
- Citizenship
- Russian Empire
- Born
- January 7, 1820, 1820
- Died
- January 21, 1891, 1891
