Guerra del Cáucaso
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.