People of the Revolution and the USSR

Comintern Communism 1878–1965 ○ Natural causes

The Comintern's first secretary, who taught Mussolini and branded him traitor

"I had never seen a more wretched human being" — on first meeting Mussolini in Lausanne

Russian-born Italian socialist. First secretary of the Comintern, she taught Mussolini Marxism and publicly denounced him as a traitor when he embraced fascism. She broke with Bolshevism in 1922 and led Italy's maximalist socialist faction.

Communist Party of Germany (KPD) Communism 1883–1919 ✕ Shot

Communist who led the Bavarian Soviet Republic in 1919 and was shot after its fall

On 13 April 1919, Leviné became chair of Munich’s Executive Board, calling for a Red Army and the overcoming of capitalism. After the Soviet Republic was suppressed, he was executed in June.

Born to a Jewish merchant family in St Petersburg, he moved to Germany with his mother after his father’s death and studied at Heidelberg. He returned to Russia to take part in the revolution of 1905 and was imprisoned. In Germany he worked in the USPD and the Spartacus League, and in 1919 the KPD sent him to Munich. When the KPD replaced Toller’s council government on 13 April he became its leader, raising a Red Army and putting factories under workers’ control. Captured after Munich fell in May, he was sentenced to death by a court martial and shot in Stadelheim prison on 5 June.

Mongolia state institutions Communism 1888–1938 ✕ Executed (details of sentence disputed)

Buryat revolutionary, drafter of Mongolia's 1924 constitution, victim of the Great Terror

At the third party congress in August 1924, as leader of the leftist faction he joined the rightists led by Dambadorj in accusing Danzan of representing bourgeois interests and dealing with American and Chinese firms; Danzan and Bavaasan were sentenced and shot within twenty-four hours.

A Buryat from Transbaikalia, he was elected first chairman of the Buryat-Mongol Central National Committee (Burnatskom) in April 1917 and helped lay the foundations of Buryat autonomy. In 1920 he became secretary of the Mongol-Tibet section of the Comintern's Far Eastern Secretariat. After the 1921 revolution he served until 1925 as chairman of Mongolia's Revolutionary Military Council, a government adviser, a member of the MPRP Central Committee presidium and a deputy in the Great and Small Khural. He helped draft the 1924 constitution and argued for the non-capitalist path at the third party congress, where he also joined in denouncing Danzan. Arrested in Moscow on 19 June 1937 (custody records date it 19 July), he was sentenced in 1938; sources disagree on the sentencing date and on when and where he was executed. A review of his case began in 1955 and he was rehabilitated in 1957.

Communist Party of Germany (KPD) Communism 1891–1941 ✕ Suspicious death (likely NKVD)

The pianist-turned-revolutionary who drove the KPD's ultra-left turn, and became the anti-Stalinist left's perpetual dissident

“Comrade Maslow, who is playing at Leftism and wishes to exercise himself 'hunting Centrists,' has more zeal than sense.” — Lenin, singling him out by name in his 'Letter to the German Communists' (14 August 1921).

Born into a Ukrainian Jewish merchant family, he abandoned a concert-pianist career to study physics under Einstein and Planck, then the First World War radicalized him into the KPD's founding. As Ruth Fischer's lifelong partner he took the party chairmanship in 1924 and drove 'Bolshevisation', a break with the united front and a one-sided crusade against Social Democracy, until Stalin and Thälmann displaced and expelled him in 1926, leaving him a lifelong anti-Stalinist dissident.

Comintern Communism 1893–1953 ○ Natural causes

The Comintern's first envoy who midwifed the Chinese Communist Party

In 1920 Shanghai, discussing party-building with Chen Duxiu, he diagnosed: "The new-thought movement in China is surging but too complex — Anarchism, syndicalism, Social Democracy, guild socialism, a chaos without a mainstream. People write articles and speak empty words but take absolutely no practical action. This can never propel the Chinese revolution forward."

The Comintern's first envoy to China, who in 1920 worked with Li Dazhao and Chen Duxiu to lay the foundation for the Chinese Communist Party. After his recall, he became a founder of Soviet sinology in Moscow.