Conspiracy against Duncan

Conspiracy against Duncan is the moment when Macbett, Banco, and Lady Duncan turn political dissatisfaction into a sworn plan to kill Duncan. Its decisive tension lies between a claim to self-rule and Macbett’s intention to take the throne: the rebels speak collectively about governing themselves, but their proposed division of power already places Macbett above the others. The crossed daggers make their agreement a visible pledge, while the scene’s abrupt exit gives way to Duncan’s reappearance with real majesty.

From self-rule to overthrow

The conspiracy begins with the language of political autonomy. Macbett names self-rule as the aim; Banco makes that idea practical by describing it as running their own affairs. Their exchange quickly hardens into a demand to drive Duncan out. Banco calls for his removal in emphatic, comprehensive terms, and Macbett echoes the demand before Banco states that they must overthrow him. The progression moves from an abstract ideal to a direct assault on the existing ruler.

Their descriptions of Duncan intensify that shift. The conspirators call him a tyrant, an usurper, and a dictator, reducing the justification for rebellion to the claim that his rule is illegitimate and oppressive. The labels are not accompanied here by a recounting of specific abuses; instead, their accumulation gives the plot its urgency and establishes the shared political language through which the three can act together. The subsequent oath to exterminate him makes explicit what the rhetoric has been moving toward: this is not merely a change of administration, but a plan to kill the sovereign.

A hierarchy inside the alliance

Macbett’s proposal reveals that the promised new order is not a straightforward sharing of power. He suggests dividing the kingdom, but immediately specifies that he will take the throne. Banco is offered the position of chamberlain. When Banco reformulates this as second-in-command, Macbett corrects him: Banco would rank third, because the conspiracy has another participant. The exchange makes the hierarchy audible before the conspirators have taken power. Macbett treats the kingdom as something to partition and assigns the highest office to himself; Banco’s role is subordinate even within their common cause.

That third conspirator is Lady Duncan, whom Macbett calls indispensable. Her presence changes the conspiracy from a proposed arrangement between two men into a three-person alliance. Macbett also tells Banco that he and Lady Duncan are engaged. Banco recognizes her as the future Lady Macbett, congratulates the pair, and kisses her hand. The engagement is therefore disclosed within the political negotiation, joining a personal bond to the planned redistribution of the crown. The scene establishes her as a participant in the plot, not simply as the intended wife of its prospective ruler.

The oath and its stage image

Lady Duncan’s declaration, “To the death!”, supplies the transition from planning to commitment. The three draw their daggers and cross them at arm’s length, turning their agreement into a compact that can be seen as well as heard. Their collective vow to exterminate Duncan follows the gesture. The daggers make the conspiracy’s intended violence tangible, while the shared action presents the three as joined in a common undertaking. The staging gives the oath a formal, almost ceremonial shape, though its purpose is regicide.

The alliance remains sharply unequal even at the instant of mutual commitment. All three participate in the oath, but Macbett has already claimed the throne and placed Banco below Lady Duncan in the proposed order. Their solidarity rests on a common target, not on an equal distribution of authority. The scene thus holds two political meanings together: collective resistance to Duncan and a prospective concentration of power in Macbett’s hands. The promise of self-rule does not erase the ambitions revealed by the conspirators’ own terms.

Exit and contrast

After the oath, fanfares sound and the conspirators leave quickly to the left. The stage direction marks the end of their private agreement with a swift departure; it does not show them carrying out the killing, and the conspiracy should not be confused with Duncan’s later assassination. The Archduke enters from the right, and the scene notes that Duncan has real majesty, at least at its beginning. That immediate contrast places the conspirators’ accusations beside the ruler’s stage presence. Their plot has been established, but Duncan is not presented in this moment as already stripped of authority: the grandeur they mean to overthrow remains visible as the next phase begins.