Dee ihe na-aga n'ihu maka paragraf a - Ivan Sergeyevich Leontiev (2 Machị 1782<unk>2 Ọgọst 1824) bụ onye isi ndị Imperial Russian nke lụrụ agha na Napoleonic Wars. N'ọnwa Disemba nke afọ 1812, e buliri ya n'ọkwa onye isi ndị agha ma mee ya onye isi nke 1st Brigade nke 2nd Cuirassier Division n'okpuru Baron Duka ma lụọ ọgụ na Lützen
na Bautzen.