The list could be compounded enormously, but from such and others like these, definitive interpretations of the plays in which they appear have been promulgated—postulating, say, a schizophrenic Iago, a self-dramatizing Othello, a paranoid Henry IV, a Benedick completely self-unaware, a pattern concerning true and false gold in Romeo and Juliet, and every sort of Gertrude.
Source: wiktionary