Iago warns Othello that there may be a legal attempt to break the marriage, but Othello knows his military worth to Venice and meets the Duke and Senators with confidence. Cassio has been sent to fetch him to an urgent meeting about the situation in Cyprus. Iago tells Cassio of Othello's marriage. Brabantio's party arrives; Brabantio threatens Othello with violence and accuses him of using sorcery to seduce Desdemona, his reasoning being that she would never marry Othello voluntarily. Brabantio calls for Othello's arrest and imprisonment but cedes precedence to the Duke's summons to the emergency meeting.
