Louis Ernst Freiherr von Nicolay (Russian: Леонтий Павлович Николаи; 7 January 1820 in Copenhagen, Denmark – 2 February 1891 in the Grande Chartreuse, France) 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
- Q189290, Q733786
- Citizenship
- Q34266
- Born
- January 7, 1820, 1820
- Died
- January 21, 1891, 1891
