Christine Delphy is a French feminist sociologist, writer and theorist. Known for pioneering materialist feminism, she co-founded the French women's liberation movement in 1970 and the journal Nouvelles questions féministes with Simone de Beauvoir in 1981.

Monique Wittig was a French author, philosopher and feminist theorist who wrote about abolition of the sex-class system and coined the phrase "heterosexual contract". Her groundbreaking work is titled The Straight Mind and Other Essays. She published her first novel, L'Opoponax, in 1964. Her second novel, Les Guérillères (1969), was a landmark in lesbian feminism.