Lady Macbeth devises a plan to kill King Duncan, to speed up her husband's ascension to the throne. Lady Macbeth fears that her husband is "to full of the milk of human kindness" to kill the king. She will see to it that the king's guards become so inebriated that they pass out, cannot guard the king, and cannot recall the events of the night. She will use their daggers to kill the king and smear his blood on them. This, though, is not quite what happens, because the king reminds Lady Macbeth of her father.
A big effect
The line of kings shown to Macbeth in his vision are intended to imply that Banquo's descendants will not only be kings but will be kings for ever. Naturally this was a polite flattery to King James, who was supposedly one of them. Anyway, Macbeth gets the point, although why it should distress him as much as it does is puzzling.
Macduff
angus is one of the kings thanes
Drugged them.
Macbeth caused it, Lady Macbeth proposed it, the stewards were killed for it, and the king's sons took the blame for it.
The line of eight kings in Shakespeare's play "Macbeth" is said to descend from Banquo, who was a character in the play and a friend of Macbeth. Banquo is described as being the ancestor of Scottish kings in the play.
In response to Macbeth's questions, the witches prophecize that Macbeth will become king and encourage him to take action to make the prophecy come true. They manipulate his ambition and plant seeds of greed and paranoia, which ultimately lead to Macbeth's downfall.
Macbeth
they were in a war
MacBeth then Banquo's son Malcom.
Oh honey, let me break it down for you. The line of 8 kings in Macbeth refers to the eight kings that Banquo sees in a vision, who are all descendants of Banquo himself. It's a symbolic way of showing that Banquo's lineage will eventually rule Scotland, unlike Macbeth's doomed reign. So, in a nutshell, those 8 kings are basically a mic drop on Macbeth's power-hungry behind.