Although the witches played a significant role in encouraging Macbeth's downfall they weren't the only ones to, Lady Macbeth was involved greatly. Lady Macbeth, once she first heard his plot to become king, had just as much or more ambition than Macbeth. She knew that Macbeth's sense of honour would not allow him to murder the king. "" it is full o" the milk of kindness to catch the nearest way,"" because Lady Macbeth knew that he couldn't "catch the nearest way," she also knew that she would have to urge Macbeth into becoming king. To do this she calls upon evil spirits. ""Come, you spirits that tend on mortal thoughts! Unsex me here, and fill me from the crown to the toe top-full of direst cruelty-" She says "unsex me here" which is very strong. It means she wanted to have her gender taken of her so all what made her a woman was gone. Macbeth was re-considering the murder of King Duncan. Lady Macbeth says to him "" And live a coward in thine own esteem, letting "I dare not" wait upon "I would", like the poor cat i" the adage?"" and ""I am settled and bend up each corporal agent to this terrible feat. Away, and mock the time with fairest show; false face must hide what the false heart doth know."" Macbeth and Lady Macbeth seem to have good communication but that deteriorated as the play went on, to the point were Macbeth didn't tell her he instructed people to murder Banquo. The later the play went on, the less the involvement she has to play in Macbeth's downfall to the point were when she committed suicide at the end he never even went to her side.
Duncan and his sons Malcolm and Donaldbain were partly responsible for the tragedy. King Duncan and his sons during the play were poor at judging character. They first fought that the former Thane of Cawdor was a good man but he was mistaken as he deceived Duncan and then he was greatly wrong about Macbeth. They trusted Macbeth even so he gave him the title Thane of Cawdor.
