Iago that Desdemona is having an affair with Cassio. This plan occupies the final three acts of the play. He manipulates his wife Emilia, Desdemona's lady-in-waiting, into taking from Desdemona a handkerchief that Othello had given her; he then tells Othello that he had seen it in Cassio's possession. Once Othello flies into a jealous rage, Iago tells him to hide and look on while he (Iago) talks to Cassio. Iago then leads Othello to believe that a bawdy conversation about Cassio's mistress, Bianca, is in fact about Desdemona. Mad with jealousy, Othello orders Iago to kill Cassio, promising to make
Emilia (Othello) mention in the source of the ensign's wife being Desdemona's attendant. In Cinthio, the ensign's wife accompanies her husband to Cyprus. She is described as "a beautiful and virtuous young woman" who, "being of Italian birth...was much loved by the Moor's wife, who spent the greater part of the day with her." The ensign, "not heeding at all the vows he had made his wife", lusts after Desdemona who, very much in love with the Moor, is oblivious to the ensign's passion. In Cinthio, the ensign filches Desdemona's handkerchief when she visits his house and hugs his three-year-old daughter. It