The essay comments on anti-Semitism as a significant ideology of radical rightists in Russia between 1905 and 1917 and radical rightist emigration in 1918-1939. The role and significance of anti-Semitism are depicted through a biographical portrait of Nikolaj Markov (1866-1945). He was one of the leading figures of the ultra-rightists in Russia and a member of the State Duma. He systematically stood against the Jews, demanded restriction of their civil rights and freedoms and blamed them for most of the problems in Russia. His anti-Semitism was not isolated among the ultra-rightists, but corresponded with a general attitude. Anti-Semitism of the radical rightists became even more vigorous after the fall of the monarchy. The February coup d'etat and the Bolshevik revolution in October 1917 were interpreted as an 'international Jew-Masonic conspiracy'. Markov left for Germany during the civil war where he organised a Russian monarchist movement. He was particularly active in the 20s and the second half of the 30s when he published Vojny temnych sil, an anti-liberal and anti-Semitist interpretation of the Russian revolution. In emigration he collaborated with the Nazis.