Oedipus had killed Laius, and discovered that he himself was responsible. Jocasta, upon realizing that she had married both her own son, and her husband's murderer, hanged herself. Oedipus then seized two pins from her dress and blinded himself with them. The legend of Oedipus has been retold in many versions, and was used by Sigmund Freud to name and give mythic precedent to the Oedipus complex. Variations on the legend of Oedipus are mentioned in fragments by several ancient Greek poets including Homer, Hesiod, Pindar, Aeschylus and Euripides. However, the most popular version of the legend comes from the set
Oedipus and the Sphinx and evil, but also between the sexes, and that the opening poem of "Buch der Leider" by Heinrich Heine was the source for the idea of the painting. In that poem the Sphinx triumphs over Oedipus. In a Freudian interpretation, it has been argued that the Sphinx represents the castrating effect of Moreau's mother that he has seeking to escape. At the time the painting was created, Moreau's father had recently died. By contrast, Henri Dorra has suggested that the poses of the sphinx and Oedipus are derived from the Greek etymological meaning of the word sphinx, which is to