Countess Alexandra Vladimirovna Armfelt ( Swede Alexandrine Armfelt ; married to Zheleznov ; September 16, 1866 , Turku  - March 6, 1933 , Leningrad ) - Russian woman composer from the Finnish family of Armfelt , granddaughter of a major dignitary A. G. Armfelt .
She studied with Anton Rubinstein , then became close to Mily Balakirev and Nikolai Rimsky-Korsakov . The first composition, piano sketch, published in 1893 .
In 1895 , she married officer Vladimir Zheleznov, who served in the Urals, and together with him collected and published a collection of songs by the Ural Cossacks.  Later she published romances (to the verses of Fet , Maykov , K. R. , Shelley , etc.), piano and other chamber compositions. She taught at Raphof's music courses.
After the October Revolution of 1917, she worked as a taper, giving private lessons.
In 1966, for the first time after a long silence, Zheleznova’s romances were performed on Perepelkin’s Musical Media. In 2002, a collection of her works was published, which included both romances and instrumental works. 
- Carpelan, Tor: Ättartavlor för de på Finlands riddarhus inskrivna ätterna 1, A – G , p. 61. Helsingfors: Frenckell, 1954.
- Zheleznova A. , Zheleznov V. Songs of the Ural Cossacks. - SPb. : Imp. Russian music. Society , St. Petersburg Branch, 1899. - 124 p.
- Ovechkin V.V. Musical notes by Alexandra Zheleznova (Armfelt) . "Selected Works." - St. Petersburg: Publishing House "UT", Zh5206610100-018 / 6 YaZ (03) -12 (2002). Archived on June 26, 2012.