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He was a Socialist Revolutionary railway worker, who in his role as head of the Transcaspian Government was responsible for the execution of the 26 Baku Commissars.
He was assassinated in the Mariinsky Palace by Socialist-Revolutionary Stepan Balmashov.
The same year, the Movement issued a declaration supporting Socialist revolutionary movements, which led to the Catholic hierarchy, through Juan Carlos Aramburu, coadjutor Archbishop of Buenos Aires, to proscribe priests from making political or social declarations.
His aunt was the Irish republican politician and socialist revolutionary, Constance Markievicz (née Gore-Booth).
Tetyana later married a former Ukrainian Socialist-Revolutionary and writer Serhiy Pylypenko who in 1919 joined the ranks of Bolsheviks and was a Combrig of the Red Army.