Alexandra Mikhailovna Kollontai was a Russian revolutionary, politician, diplomat and Marxist theoretician. Serving as People's Commissar for Welfare in Vladimir Lenin's government in 1917–1918, she was a highly prominent woman within the Bolshevik party. She was the first woman in history to be a cabinet minister, and one of the first women to be appointed as a diplomatic representative of a modern state, and the first to be promoted to the rank of ambassador.
The daughter of an Imperial Russian Army general, Kollontai embraced radical politics in the 1890s and joined the Russian Social Democratic Labour Party (RSDLP) in 1899. During the RSDLP ideological split, she sided with Julius Martov's Mensheviks against Lenin's Bolsheviks.