I cry you mercy, then:
I took you for that cunning whore of Venice
That married with Othello.
– William Shakespeare
Othello, Act 4, Scene 2. Othello sarcastically begs Desdemona’s pardon after she protests her innocence of betrayal of their marriage. Then he shows his cruelty by contemptuously saying that he confused her with the "cunning whore" from Venice who married Othello.