Complex sentence: Hilary Minc (24 August 1905, Kazimierz Dolny-26 November 1974, Warsaw)--born into a middle-class Jewish family of Oskar Minc and Stefania née Fajersztajn--was a communist politician in Stalinist Poland and pro-Soviet Marxist economist.
Split into simpler sentences: Hilary Minc (24 August 1905, Kazimierz Dolny-26 November 1974, Warsaw) was a Polish politician. Minc was born into a middle-class Jewish family of Oskar Minc and Stefania née Fajersztajn--was a communist politician in Stalinist Poland and pro-Soviet Marxist economist.