Sigmund Freud based his psychoanalytic theory of the "Oedipus complex" partly on his reading of the play, Hamlet, conjecturing that William Shakespeare's conflicted feelings about his family had influenced the play's portrayal of Prince Hamlet's psycho-sexual conflicts about his family. Later in life, however, Freud decided that the play had not been written by an actor and businessman from Stratford-on-Avon, as is traditionally believed, but by a...