Mikhail Yakovlevich Herzenstein (April 30 [O.S. 18] 1859, Odessa, Russian Empire — July 31 [O.S. 18] 1906, Terijoki, Grand Duchy of Finland, Russian Empire) was a Russian Jew converted to Christianity, elected for the Constitutional Democratic Party to the First State Duma of the Russian Empire, representing the city of Moscow. He was assassinated before the end of his parliamentary mandate by the Black Hundreds antisemitic terrorist group at his summer home in Terijoki in the Grand Duchy of Finland.
- ru:Иоллос, Григорий Борисович (in Russian)
- Из глубины времён. Альманах. 1994, №3, с. 86. 1994.
- "The Russkoe Znamya declares openly that "Real Russians" assassinated Herzenstein and Iollos with knowledge of officials, and expresses regret that only two Jews perished in the crusade against revolutionaries." "1910-1911" (PDF). American Jewish Yearbook.
- "Herzenstein, Mikhail Yakovlevich". The Universal Jewish Encyclopedia Volume 5. p. 137. Retrieved 2009-11-07.
- Bernstein, Herman (September 19, 1909). "How two assassinations were carried in Russia". The New York Times. New York.
- Rawson, Don C. (1995). Russian rightists and the revolution of 1905. Cambridge University Press. pp. xv, 286. ISBN 0-521-48386-7. — P. 136
- Langer, Jack (2004). James R. Millar, ed. Black Hundred. Russian History Encyclopedia. Gale.
- Klier, John D. (2005). Richard S. Levy, ed. Black Hundreds. Antisemitism: a historical encyclopedia of prejudice and persecution. 2. ABC-CLIO. p. 71. ISBN 1-85109-439-3.