how did lady macbeth usurp power
Power is a theme used by Shakespeare throughout the play Macbeth. The plot involves Macbeth trying to gain more power. Lady Macbeth tries to convince Macbeth to kill Duncan so that he will become king in his place. Macbeth also is persuaded to kill anyone who threatens his chances of being king, including Banquo.ady Macbeth is the dominant partner at the beginning of the play, she persuades Macbeth to achieve his goal, and she plans the murder of Duncan. Lady Macbeth takes the role of the dominant partner in the beginning of the play, by acting as the real power behind the throne.