Klaus Katzur
Klaus Katzur was a German swimmer who competed in the 1964, 1968, and 1972 Summer Olympics. In 1972, he won a silver medal in the 4 × 100 metre medley relay and finished eighth in the 200 metre breaststroke. Two years earlier, he won two gold medals in these events at the 1970 European Aquatics Championships. Between 1963 and 1972, he won 13 national titles in breaststroke, freestyle, and medley events.