András Hegedüs (Hungarian pronunciation: [ˈɒndraːʃ ˈhɛɡɛdyːʃ]; 31 October 1922 – 23 October 1999) was a Hungarian Communist politician who served as Chairman of the Council of Ministers from 1955 to 1956. He fled to the Soviet Union on 28 October, the fifth day of the Hungarian Revolution of 1956, but returned in 1958 and taught sociology.
From the early 1950s he took on numerous ministerial portfolios and served as Prime Minister from 18 April 1955 to 24 October 1956.
After signing the document asking Soviet troops for assistance during the revolution on 24 October, the government and people overwhelmingly supported him handing power to Imre Nagy. He became the most hated man in Hungary and was advised to flee by Soviet ambassador Yuri Andropov to the Soviet Union along with other Hungarian hardliners such as Ernő Gerő. In Moscow, he worked as part of the philosophy department at the Soviet Academy of Sciences between 1957 and 1958. In the November 1956 the interim committee of the Communist party shut him out of the party but by September 1958 he was able to return home.
In 1968 he objected to the Warsaw Pact invasion of Czechoslovakia during the Prague Spring. He was dismissed from his position at the Sociology Research Institute and later in 1973 was shut out of the Communist Party for his differing political and ideological views. He became a pensioner from 1975 to 1982 when he was allowed to teach at the Economics University.
More information on the English and Hungarian Wikipedia pages.