On this day, 39 years ago, on April 11, 1986 (March 3, 1986 in the lunar calendar), French writer Simone de Beauval passed away. Simone de Boval In April 1986, Simone de Boval (1908-1986), a French feminist writer and existentialist philosopher, died at the age of 78. She was a long-time colleague of Jean-Paul Satre and the author of two influential books,"The Second Sex" and "The Coming of the Times."