Simone de Beauvoir, in full Simone Lucie Ernestine Marie Bertrand de Beauvoir, (born January 9, 1908, Paris, France – died April 14, 1986, Paris, France) was a French writer, existentialist philosopher, and activist.
De Beauvoir wrote a rich corpus of writings including novels, essays, biographies, fiction, politics and social issues. Her most notable works are She Came to Stay (1943), The Prime of Life (1960), Memoirs of a Dutiful Daughter (1958), and The Mandarins (1954) for which she won the Prix Goncourt award.
She is primarily known for her novel The Second Sex (1949), which is considered a classic work of the modern feminist movement.
When she was 21, de Beauvoir met Jean-Paul Sartre with whom she had a lifelong relationship that shaped their lives.