Konstantin Ustinovich Chernenko (24 September [O.S. 11 September] 1911 – 10 March 1985) was a Soviet politician who served as the de jure leader of the Soviet Union from February 1984 until his death in March 1985.
Born to a poor family in Siberia, Konstantin Chernenko joined the Komsomol in 1929 and became a full member of the ruling Communist Party of the Soviet Union in 1931. After holding a series of propaganda posts, in 1948 he became the head of the propaganda department in Moldavia, serving under Leonid Brezhnev. After Brezhnev took over as First Secretary of the CPSU in 1964, Chernenko was appointed to head the General Department of the Central Committee. In this capacity, he became responsible for setting the agenda for the Politburo and drafting Central Committee decrees.