Konstantin Ustinovich Chernenko was a Soviet politician and General Secretary of the CPSU who led the Soviet Union from February 13, 1984 until his death just thirteen months later on March 10, 1985. Chernenko was also Chairman of the Presidium of the Supreme Soviet from April 11, 1984, until his death. Wikipedia
The definitive Wikipedia entry for Konstantin Chernenko. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Konstantin_Chernenko