Lev Grigorievich Deutsch, also known as Leo Deutsch was a Russian Marxist revolutionary and one of four founding members of Russia's Marxist Organisation, the precursor of the Russian Social Democratic Labour Party.
Leo Deutsch
Mikhail Fedorovich Frolenko was a Ukrainian revolutionary, populist, and a member of the Executive Committee of the People's Will, who was implicated in the assassination of the Tsar Alexander II.
Mikhail Frolenko
The house in which the prominent revolutionary populist Frolenko lived