Marcel Duchamp, Man Ray, and Francis Picabia all created female alter-egos at some point during their careers.  In her article Marcel Duchamp and Man Ray: Dada in drag Joanna  Pitman argues that all three of these alter-egos "related to their broadening concept of what it meant to be an artist’, but Duchamp’s was the most complex.  Unlike Man Ray and Picabia, Duchamp created artworks, such as Why Not Sneeze Rose Selavy? (1921) and Fresh Widow (1920), under the name of his alter-ego.   In doing this, Duchamp  "expanded the posibilities of what constiututed a work of art" by questioning artistic identity and breaking taboos.