Klaus Siebert is a German former biathlete and biathlon coach who raced for East Germany. At the 1980 Olympics in Lake Placid, New York, Siebert won a silver medal on the relay with the East German relay team. In the Biathlon World Championships. Siebert has two gold medals with the East German relay team in 1978 and 1979, and a bronze medal from 1977. He also has three individual medals gold medal from the 20 km in 1978 and two bronzes from the 10 km in 1975 and 1978. After retiring from competition he became a coach. He has coached in Germany, China and Belarus. He returned to his coaching role with the Belarussian national biathlon team in January 2012 after spending much of the previous year ill with cancer. 

April 29th, 1955 in Schlettau (Age 69)