page_title: Sergei Efron
section_title: Family life
hierarchical_section_title: Sergei Efron / Family life
caption_attribution_description: Русский: Ариадна ЭфронEnglish: Russian poet and translator Ariadna Efron, daughter of Russian poet Marina Tsvetaeva.
context_page_description: Sergei Yakovlevich Efron was a Russian poet, officer of White Army and husband of Marina Tsvetaeva. While in emigration, he was recruited by the Soviet NKVD. After returning to USSR from France, he was executed.
context_section_description: Sergei was born in Moscow. He was the sixth of nine children born to Elizaveta Durnovo (1853–1910) and Yakov Konstantinovich Efron (1854–1909). Both were Russian revolutionaries and members of the Black Repartition. Yakov worked as an insurance agent and died of cancer in 1909. The following year, Elizaveta found one of her sons had committed suicide and soon after that day, killed herself. Yakov was from a Jewish family, while Elizaveta came from a line of Russian nobility and merchants; Yakov converted to the Lutheran faith to marry Elizaveta.
  Efron contracted tuberculosis as a teenager and his mental and physical health was strained further upon learning of his mother's death. After becoming a student at Moscow University, Sergei volunteered for the military as a male nurse. Due to his poor health, though, he was unable to serve in that capacity. Instead, he enrolled in the officer cadet academy.
  When Efron was a 17-year-old cadet in the officers' academy, he met 19-year-old Marina Tsvetaeva on 5 May 1911 at Koktebel ("Blue Height"),  a well-known Crimean haven for writers, poets and artists. They fell in love and were married in January 1912. While they had an intense relationship, Tsvetaeva had affairs, such as those with Osip Mandelstam and poet Sofia Parnok.
  Tsvetaeva and her husband spent summers in the Crimea until the revolution. They had two daughters: Ariadna, or Alya, (born 1912) and Irina (born 1917), and one son, Georgy.
caption: Ariadna (Alya) Efron, Sergei Efron's daughter, 1926
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