in Malcolm's complete lack of sympathy forLady Macbeth, this “fiendlike queen” who was as responsible as anyone for Scotland's descent into bloodstained tyranny.

To some extent, one could also argue that Macbeth's notably emotionless response to his wife's death reflects this attitude. Though he doesn't criticize Lady Macbeth for her manner of death or even acknowledge it, he nonetheless feels that she died at the wrong time. As Lady Macbeth chose the hour of her own death, this can be seen as an implied criticism of her actions.

To answer your question about Lady Macbeth's death in Shakespeare's Macbeth, just follow the prompt included with the question.  Just go to the end of the act as the prompt tells you to, and you will find the information you need.

Malcolm concludes the play in Act 5.8 with a speech.  During the speech he refers to Lady Macbeth's manner of death.  You will find what you need in Malcolm's concluding speech in 5.8.  This is the only specific information given in the play as to her death. 

Once you read Malcolm's words, then you can draw conclusions about the connection between her madness and her death. 

Remember, however, that Shakespeare loves ambiguity, and the information he gives concerning Lady Macbeth's death is scant.  What information there is, though, is in Act 5.8.  I cleaned up your question and italicized the key phrase for you. 

The short answer to this question is that everyone who dies in Macbeth does so as a direct or an indirect result of the main character's actions.  The deaths begin in Act II when Macbeth himself murders Duncan as he sleeps.  After killing the king, Macbeth also kills “those of [Duncan’s] chamber” (at least two more) out of what he explains is his grief and fury.  Macbeth then dispatches murderers to kill Banquo, Fleance, Lady Macduff, and her children.  Fleance is the only one who escapes, a very important point considering the witches prophesy.  We learn in Act V that “the Queen, my lord, is dead.”  Therefore, Lady Macbeth has died as well, most likely by suicide as a result of her guilt, her paranoia, or both.  Lady Macbeth would certainly not have been in this desperate mental state if she hadn’t convinced Macbeth to go through with his original wicked deed:  the murder of Duncan.  Macbeth then personally kills Young Siward, the Earl of Northumberland’s son, and laughs that “thou wast born of woman.”  Most importantly, Macbeth dies at the hand of Macduff, his final battle cry being, “Though Birnam Wood be come to Dunsinane, And thou opposed, being of no woman born, Yet I will try the last.”  That puts the number at ten (at the very least) who die directly or indirectly as a result of Macbeth’s actions, proving Macbeth to be a true tragedy in every sense of the word.

It is difficult to provide an exact body count to attribute to Macbeth and Lady Macbeth.

We know that Macbeth was no stranger to violence based on his prowess on the battlefield. For example, in act 1, scene 2 we are told that the “merciless Macdonwald” had fought Macbeth. The result was that Macbeth, “unseam'd him from the nave to th' chops, and fix'd his head upon our battlements.” Bloody stuff! It is safe to assume that Macbeth killed many other enemy combatants as well, due to his fierce reputation as a warrior. Macbeth’s actions on the battlefield are honorable; he defends Scotland with his sword and, had the play ended there, Macbeth would be viewed as a hero!

However, after hearing the prophecies of the Weird Sisters and being shamed by his wife, Macbeth murders King Duncan. This regicide sparks a deepening bloodbath, as Macbeth kills the drunken guards who Lady Macbeth had intended to frame for the murder. He then murders his friend, Banquo to forestall the second predictions from the witches. Following the witches’ advice to “Beware MacDuff, Beware the Thane of Fife,” Macbeth attacks Macduff’s defenseless castle and murders MacDuff’s entire family, including the servants.

During the final battle, even when Macbeth continues to slay men on the battlefield. Young Siward, the eager young son of the English general, is cut down by Macbeth’s sword before the tyrant is finally vanquished.

Although impossible to determine exact casualty figures for Macbeth’s reign, the list of named characters killed by Macbeth in the play include:

- King Duncan
- Banquo
- Lady MacDuff
- Lady MacDuff’s Son
- Young Seward

Remember, this does not include the unnamed guards, servants, and members of MacDuff’s family. Macbeth is accurate when he claims he is steeped in blood in act 3!

It should be noted that, although Lady Macbeth is complicit in the murder of Duncan, there is no evidence that she was directly involved in the other deaths. In fact, Macbeth seems to increasingly hide his violent plans from his wife. Whether or not Macbeth can be blamed for his wife’s suicide is another interesting avenue to ponder. Perhaps Lady Macbeth herself should be included on the above list!

Macbeth and Lady Macbeth are consumed by their "vaulting ambition"(I.vii.27) in Macbeth and it seems that they will go to any lengths to ensure that the witches prophesies "All hail, Macbeth, that shalt be king"(I.iii.50) are fulfilled.

It is reasonable to assume that Macbeth, a respected, honorable soldier, having received one honor from his king when he was made Thane of Cawdor, could expect that others would follow. However, Macbeth and Lady Macbeth, his "partner of Greatness" (I.v.10) are prepared to do whatever it takes to remove anything that "impedes thee from the golden round."(25)  

The ultimate deaths of Macbeth and Lady Macbeth, although different both result from madness. Lady Macbeth tries to wash away her guilt "Out damned spot"(V.i.32) and is more affected by what she may have encouraged Macbeth to do. For all her lack of compassion for others, she always feels responsible for Macbeth who has now excluded her from his murderous deeds. She longs to tend to Macbeth - "put on your nightgown, look not so pale" (60) as she attempts in one of her ravings to make everything fine as "Banquo's buried; he cannot come out on's grave. " (61) Her efforts are in vain and Macbeth cannot be stopped. There is no - one to help her as "more needs she the divine than the physician"(72)

Macbeth is convinced that the doctor can cure her as he is delusional, believing that her "diseas'd" mind can be cured with some "oblivious antidote."(V.iii.42) Nothing can stop Macbeth until "Birnam Forest come to Dunswaine"(60) thus exposing Macbeth's own madness. He is affected by his wife's death as his life is rendered "a tale...signifying nothing"(V.v.26) but still he does not stop.

Ultimately Macbeth will be killed as he will not surrender to anyone he thinks is "one of woman born."(V.viii.12) He still thinks he is invincible as he has "a charmed life." Even his recognition that the witches are nothing more than "juggling fiends"(19) will not stop him. "Lay on, Macduff."(33)