Eduardo Frei Montalva

Eduardo Nicanor Frei Montalva (; 16 January 1911 – 22 January 1982) was a Chilean politician. He was the 27th president of Chile from 1964 to 1970. His oldest son, Eduardo Frei Ruiz-Tagle, also became president of Chile (1994–2000).
Frei Montalva died on 22 January 1982 in Santiago de Chile from sepsis caused by hernia surgery, aged 71. 
After his death, conspiracy theories were made saying that he was poisoned while having surgery. It was said that Mustard gas was given to him instead on anesthesia to make him weak enough not to survive the surgery. In 2019, six men were sentenced to 10 years in prison for their involvement in Frei Montalva's death.