In act 1, scene 3, Macbeth and Banquo are walking from a battlefield on the heath and come across three witches. The witches hail Macbeth Thane of Glamis, Thane of Cawdor, and King (of Scotland). ... In act 1, Banquo also learns that he will not be a king but he will "get kings," meaning he will be the father of kings.
