Who is actually responsible for the regicide / murder of King Duncan in Macbeth?

William Shakespeare’s The Tragedy of Macbeth (commonly called Macbeth) is a play about a regicide of King Duncan and its aftermath. It is true that Macbeth, the protagonist, himself physically kills the king. But when question comes “who is responsible for killing King Duncan?” it is difficult to answer. Because, Shakespeare makes the background and subsequent situation so complex that it is difficult to find out whom we should call more responsible.

At first Macbeth appears before us as brave, noble, gentle, loyal to the king and loved by all. His bravery against enemy is compared with “eagles” against “sparrows”; “the lion” against “the hare”. He is described as “Bellona’s bridegroom”. Yet Macbeth shows his loyalty to the King,
The service and the loyalty I owe [to thee].

Here it is hard to believe that such a man is seized with an overpowering ambition and kills a respected and orderly king. Actually Shakespeare here lessens Macbeth’s responsibility by applying a common contemporary theatrical device of the time, the witches whose task is to misguide and confuse people and distort reality. To them,
Fair is foul, and foul is fair:
Hover through the fog and filthy air.
They call Macbeth the “thane of Glamis” which he already possess, and the future “thane of Cawdor” and the king hereafter. Next when he, having returned from a victorious battlefield, is informed the king’s reward to him the “thane of Cawdor”, he becomes confused and frightened that two of the prophecies have constantly proved, and
          “[t]he greatest is behind”
But, he fears, the third one is not possible until the king is killed,
          “…why do I yield to that suggestion
          Whose horrid image doth unfix my hair [?]”
Even, Hamlet does not pay heed to Banquo’s question,
          “Can the devil speak true?”

Here, it is arguable that some sort of hidden ambition was already in his mind and so the “horrid image” could “unfix” his hair, and he flinched and looked frightened. Actually, it doesn’t matter who tells you what to do, if you commit the crime, you are responsible.  . Doktor Alessandro De Vivo(2009:2) comments,
“So we can say that the temptation was already in Macbeth’s mind and the prophesies of the witches reinforces this temptation.” (p.2)

However some critics want to see the witches as the agents of fate, yet Macbeth is responsible. Richard Andersen(2009:106) comments,
Fate, as represented by the three witches, influences Macbeth, but Macbeth is responsible for his behavior and consequences. (p.106)

         
In partial mitigation, perhaps, it is clear that Macbeth is a man of conscience, and he struggles with that conscience right up until Duncan's murder. When Duncan comes to their hostage as an opportunity for them to fulfill the plan, Macbeth hesitates,
We will speak further.
Again, when Lady Macbeth insists, this conscience makes Macbeth declare:
We will proceed no further in this business.

          But, Shakespeare’s target is to give a big share of responsibility to Lady Macbeth, considered as the forth witch for her activities. She persuades Macbeth for the murder, calls him “coward”, questions his manliness, and tells that if she swore like Macbeth, she would kill her own baby even though it was suckling,
I would, while it was smiling in my face,
Have plucked my nipple from his boneless gums
And dashed the brains out, had I so sworn as you
Have done to this.
Can any one disregard such kind of words from his partner? ...

          Therefore, Macbeth proceeds to his downfall,
I am settled, and bend up
Each corporal agent to this terrible feat.
Macbeth’s predecessor, Adam also could not deny Eve’s argument for eating forbidden fruit, even though he knew his consequences.


According to Isador Henry Coriat (2008:33-34)
“The character of Lady Macbeth has been compared to one of the most striking figures in Greek tragedy—namely, Clytemnestra…[who]…is essentially and fundamentally criminal deceitful, voluptuous, coldly calculating in her motives.” (p.33-34)
         
Actually Shakespeare wants to impose the lion’s share of the responsibility of the misdeed to the woman character, Lady Macbeth. He generalizes the mischievousness of the women in Hamlet also,
          Frailty, thy name is woman.

To draw conclusion, we claim that Macbeth must be responsible for killing King Duncan. Though he was a man of good qualities, he, as a human being, had high ambition. But his ambition was misguided first by the witches and next by Lady Macbeth who has been shown more responsible in the play. But from feminist perspective, this must be protested, for Lady Macbeth has been maltreated by a Patriarchal Shakespeare to empure Hamlet, a male. Furthermore, every human being is endowed with “reason”. But Hamlet has not been directed by his conscience and “reason” represented by Banqo and his inner goodness. Rather, he has been owned by outward evil influence represented by the witches and Lady Macbeth.

Works Cited
Vivo, Doktor Alessandro De. William Shakespeare: an Analysis of Macbeth’s Character. Munich: GRIN Verlag, 2009

Andersen, Richard. Macbeth. Volume 1 of Shakespeare Explained. U.S.A. & U.K.: Marshall Cavendish, 2009

Coriat, Isador Henry. The Hysteria of Lady MacBeth. BiblioBazaar, LLC, 2008