The witches hail Macbeth first by his title Thane of Glamis, then as Thane of Cawdor and finally as king. They then prophesy that Banquo's children will become kings. Macbeth demands to know more but the witches vanish. Ross and Angus arrive to tell Macbeth that he has been given the title Thane of Cawdor by Duncan.
