Bianca (Othello) confirms his wife's infidelity. This "evidence" completes Iago's manufactured case against Desdemona, and thereafter Othello is determined to murder both her and Cassio. In 5.1, Bianca arrives just after Cassio has been stabbed by Iago. She reacts with horror and concern. Iago, pretending to have just entered the scene, accuses Bianca of having been part of the group that attacked Cassio. Iago claims her emotional reaction is due to her being caught rather than concern for Cassio and gets her to admit that Cassio ate at her home earlier that evening. Both Iago and Emilia call her a prostitute, but
Othello (character) of "The Three Apples", one of the stories narrated in the "One Thousand and One Nights" ("Arabian Nights"). Desdemona is the only named character in Cinthio's tale, his other characters being identified as the Moor, the squadron leader, the ensign, and the ensign's wife. While Shakespeare closely followed Cinthio's tale in composing "Othello", he departed from it in some details, particularly in the tale's depiction of Desdemona's death. In Cinthio, the Moor commissions his ensign to bludgeon Desdemona to death with a sand-filled stocking. In gruesome detail, Cinthio follows each blow, and, when the lady is dead, the Moor and