* The witches' prophecy to Banquo that his descendants will be kings. This prophecy comes true when Banquo's son, Fleance, escapes from Macbeth's assassins and goes on to father a line of kings.
* The witches' prophecy to Macbeth that he will be defeated by a man "not of woman born." This prophecy comes true when Macbeth is killed by Macduff, who was born by caesarean section.
* The witches' prophecy that Macbeth will never be defeated until Birnam Wood comes to Dunsinane Hill. This prophecy comes true when the Scottish army, led by Macduff, cuts down trees from Birnam Wood and uses them to camouflage their advance on Macbeth's castle.