Sofia Sigizmundovna Dzerzhinskaya (born Muszkat; ; ; 4 December 1882 – 27 February 1968) was a leading Polish Social Democrat and later Communist politician. During WWII, she was director of the Polish language Tadeusz Kościuszko radio station, broadcasting the communist message into occupied Poland. From September 1918 through February 1919, Sofia was a member of the Soviet diplomatic mission in Bern. From 1920, she lived in the Soviet Union, in Moscow where she worked as a teacher. In 1922, Sofia worked in the School of Rosa Luxemburg in Moscow, later, 1923–24 at the Communist University of the National Minorities of the West. After that, she worked in the Polish Bureau of the Communist Party of the Soviet Union. From 1939 to 1943, Sofia worked at the Executive Committee of Comintern. In 1969, her memoirs "Lata wielkich bojów: wspomnienia" were published in Poland by Książka i Wiedza publishing house. She died in Moscow in 1968 and was buried at Novodevichy Cemetery. Personal life She was born in Warsaw, Poland, to a Jewish family. She married Felix Dzerzhinsky on 10 November 1910 in Kraków at the St. Nicholas Church. On 23 June 1911, in Pawiak prison, she gave birth to their only son and child Janek (Jan). See also Provisional Polish Revolutionary Committee References Sources Robert Blobaum: Feliks Dzierzynsky and the SDKPiL: A study of the origins of Polish Communism (1984). 1882 births 1968 deaths 19th-century Polish Jews 20th-century Polish politicians People from Warsaw Governorate Politicians from Warsaw Chopin University of Music alumni Communist Party of the Soviet Union members Recipients of the Order of Lenin Recipients of the Order of the Banner of Work Recipients of the Order of the Red Banner of Labour Social Democracy of the Kingdom of Poland and Lithuania politicians Bolsheviks Jewish socialists Polish communists Polish emigrants to the Soviet Union Polish revolutionaries Soviet women diplomats Burials at Novodevichy Cemetery