Yevgeniya Konstantinovna Mravinskaya (Russian: Евгения Константиновна Мравинская), better known by her stage name Yevgeniya or Evgenia Mravina (Russian: Евгения Мравина; 16 February [O.S. 4 February] 1864 – 24 October [O.S. 12 October] 1914)[a 1] was a Russian lyric soprano, a half sister of revolutionary Alexandra Kollontai and the aunt of conductor Yevgeny Mravinsky.
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