<Tr> <Th> </Th> <Td> Konstantin Muraviev 1893--1965 (Lived: 71 years) </Td> <Td> </Td> <Td>--</Td> <Td> 2 September 1944 </Td> <Td> 9 September 1944 (Deposed) </Td> <Td> Bulgarian Agrarian National Union </Td> </Tr> <Tr> <Th> </Th> <Td> Kimon Georgiev 1882--1969 (Lived: 87 years) 2nd time </Td> <Td> </Td> <Td> 1945 </Td> <Td> 9 September 1944 </Td> <Td> 15 September 1946 </Td> <Td> Zveno </Td> </Tr> <Table> <Tr> <Th> </Th> <Th> Name (Birth--Death) </Th> <Th> Portrait </Th> <Th> Elected </Th> <Th_colspan="2"> Term of Office </Th> <Th> Political Party </Th> </Tr> <Tr> <Td_colspan="7"> Chairmen of the Council of Ministers 1946--1990 </Td> </Tr> <Tr> <Th> </Th> <Td> Kimon Georgiev 1882--1969 (Lived: 87 years) 2nd time </Td> <Td> </Td> <Td>--</Td> <Td> 15 September 1946 </Td> <Td> 23 November 1946 </Td> <Td> Zveno </Td> </Tr> <Tr> <Th> </Th> <Td> Georgi Dimitrov 1882--1949 (Lived: 67 years) </Td> <Td> </Td> <Td> 1946 </Td> <Td> 23 November 1946 </Td> <Td> 2 July 1949 (Died in office) </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Vasil Kolarov 1877--1950 (Lived: 72 years) </Td> <Td> </Td> <Td> 1949 </Td> <Td> 2 July 1949 Acting until 20 July 1949 </Td> <Td> 23 January 1950 (Died in office) </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Valko Chervenkov 1900--1980 (Lived: 80 years) </Td> <Td> </Td> <Td> 1953 </Td> <Td> 23 January 1950 Acting until 3 February 1950 </Td> <Td> 17 April 1956 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Anton Yugov 1904--1991 (Lived: 86 years) </Td> <Td> </Td> <Td> 1957 </Td> <Td> 17 April 1956 </Td> <Td> 19 November 1962 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Todor Zhivkov 1911--1998 (Lived: 86 years) </Td> <Td> </Td> <Td> 1962 1966 </Td> <Td> 19 November 1962 </Td> <Td> 7 July 1971 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Stanko Todorov 1920--1996 (Lived: 76 years) </Td> <Td> </Td> <Td> 1971 1976 </Td> <Td> 7 July 1971 </Td> <Td> 16 June 1981 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Grisha Filipov 1919--1994 (Lived: 75 years) </Td> <Td> </Td> <Td> 1981 </Td> <Td> 16 June 1981 </Td> <Td> 21 March 1986 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Georgi Atanasov Born 1933 (84 years old) </Td> <Td> </Td> <Td> 1986 </Td> <Td> 21 March 1986 </Td> <Td> 3 February 1990 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Andrey Lukanov 1938--1996 (Lived: 58 years) </Td> <Td> </Td> <Td>--</Td> <Td> 3 February 1990 </Td> <Td> 15 November 1990 </Td> <Td> Bulgarian Communist Party </Td> </Tr> <Tr> <Th> </Th> <Td> Bulgarian Socialist Party </Td> </Tr> </Table> <Tr> <Th> </Th> <Th> Name (Birth--Death) </Th> <Th> Portrait </Th> <Th> Elected </Th> <Th_colspan="2"> Term of Office </Th> <Th> Political Party </Th> </Tr>

Who was the prime minister of bulgaria from 1950 to 1956