Georgi Valentinovich (ˈɡjɪorɡji valɪnˈtjinəvjɪʃ). 1857–1918, Russian revolutionary; founder of Russian Marxism and leader of the Russian Social Democratic Workers' Party
Plekhanov in American English
(plɪˈkɑːnɔf, -nɑf, Russian pljɪˈxɑːnəf)
noun
Georgi (or Georgy) Valentinovich (ɡjɪˈɔʀɡji vəljɪnˈtjinəvjɪtʃ), 1857–1918, Russian philosopher and leader of the Mensheviks