. "Lev Ivanovich Ivanov (Russian: \u041B\u0435\u0432 \u0418\u0432\u0430\u0301\u043D\u043E\u0432\u0438\u0447 \u0418\u0432\u0430\u0301\u043D\u043E\u0432; 2 March 1834, Moscow \u2013 24 December 1901, Saint Petersburg) was a Russian ballet dancer and choreographer and later, Second Balletmaster of the Imperial Ballet. As a performer with the Imperial Ballet, he achieved prominence after performing as an understudy in a benefit performance of La Fille Mal Gard\u00E9e."@en . . "1866Z"^^ . "Lev Ivanovich Ivanov"@en . "1901Z"^^ . . . . "Ivanov, Lev"@en . "1901-12-24Z"^^ . "1866Z"^^ . . "Lev Ivanov"@en . . "Russian ballet dancer and choreographer" . . "1834Z"^^ . . . . . . "1834-03-02Z"^^ . . . .