Marie Braun

Maria "Marie" Johanna Philipsen-Braun (22 June 1911 – 23 June 1982), also known as Zus Braun, was a Dutch swimmer. She competed in the 1928 Summer Olympics in Amsterdam and in 1932 in Los Angeles, winning a gold medal in the 100 m backstroke and a silver in the 400 m freestyle in 1928. She failed to reach the finals of these events at the 1932 Games due to a sudden illness during the preliminary heats. During her career Braun set six world and 25 national records.

Suspected poisoning During the 1932 Olympic swimming competition in Los Angeles, Braun suddenly became very ill and was hospitalized for three weeks with a high fever. When she returned to the Netherlands, she gave a press statement stating that between events, she suddenly felt a pain in her leg and that two young American men who had been sitting in front of her in the stands and had been watching her suspiciously, "disappeared".