The main plot of William Shakespeare's Othello is typical of the genre of the revenge tragedy in having revenge as its main theme. The central example of the revenge theme is Iago, who is motivated to destroy Othello in revenge for Othello's preferment of Cassio. Iago's schemes also include revenge against Cassio. Othello's murder of Desdemona is also motivated by revenge for his being cuckolded (although that was actually a fabrication by Iago and did not happen). For forgiveness, at the end of the play, Othello correctly places blame and forgives Desdemona and Cassio. Brabantio partially forgives Desdemona, and the Duke advocates forgiveness at the marriage to Othello. Cassio forgives Othello in his final words praising him.