No, Lady Macbeth is not aware that Macbeth has planned the death of Banquo and Fleance.
Macbeth does not reveal his plan to kill Banquo and Fleance (Banquo's son) to Lady Macbeth.
MacBeth meets the three witches with lady MacBeth
Macbeth wrote Lady Macbeth a letter describing his encounter with the witches. Lady Macbeth reads it out at the beginning of Act I Scene 5
A major character trait of Macbeth and Lady Macbeth is that (to a certain extent) they regret the murders of Duncan, Banquo, etc. It eventually drives them into madness
No, Lady Macbeth is not aware that Macbeth has planned the death of Banquo and Fleance.
Macbeth does not reveal his plan to kill Banquo and Fleance (Banquo's son) to Lady Macbeth.
Lady Macbeth begins to sleepwalk after murdering Banquo.
Lady Macbeth was also missing from the banquet table in the scene from Shakespeare's "Macbeth" where Banquo's ghost appears. Lady Macbeth excuses herself from the table, fainting in response to Macbeth's behavior and the appearance of Banquo's ghost.
Macbeth Lady Macbeth Banquo Fleance Malcolm Donalbain Macduff Lady Macduff
MacBeth meets the three witches with lady MacBeth
In both cases, the ghost that appears in Macbeth is summoned by the guilt and inner turmoil of Macbeth himself. The ghost of Banquo is a manifestation of Macbeth's guilt over his role in Banquo's murder, while the ghost of Lady Macbeth represents his guilt over her death and his descent into madness.
Macbeth wrote Lady Macbeth a letter describing his encounter with the witches. Lady Macbeth reads it out at the beginning of Act I Scene 5
A major character trait of Macbeth and Lady Macbeth is that (to a certain extent) they regret the murders of Duncan, Banquo, etc. It eventually drives them into madness
The difference is that Lady Macbeth at first wanted Macbeth to kill Banquo and Macbeth was too scared to do it. Later on in the tragedy, Lady Macbeth gets haunted and gets mentally ill and Macbeth keeps on killing people.
Lady Macbeth is not involved in the plan to kill Banquo because the decision to murder Banquo is made by Macbeth alone. Macbeth wants to keep Lady Macbeth out of this particular act of violence to protect her from its consequences and to shield her from the guilt associated with the murder of their former friend. Additionally, Macbeth wants to keep the full extent of his plans hidden from Lady Macbeth to prevent her from being implicated or becoming a target of suspicion.
*Banquo. Macbeth's best friend is Banquo, but he is also Macbeth's enemy. After the meeting with the witches, Macbeth finds out that he will become the Thane of Cawdor and the King of Scotland. Eventually, he achieves both of these prophecies. Banquo, Macbeth, and Lady Macbeth are the only people that know about the witches. Banquo becomes suspicious of Macbeth because Macbeth fulfills the prophecy after King Duncan is murdered, and Macbeth acknowledges this fact. Basically, Macbeth doesn't trust Banquo.