In Macbeth, what is the name of the king murdered by Macbeth?

In Macbeth, the king murdered by Macbeth is King Duncan.

Duncan is Shakespeare’s fictional version of the historical Duncan I, who ruled Scotland in the 11th century. In the play, he is portrayed as a generous, trusting ruler and a father figure to Malcolm and Donalbain. Macbeth is initially his loyal kinsman and military captain.

After the witches predict that Macbeth will become king, Lady Macbeth urges him to seize the crown. Duncan visits Macbeth’s castle as a guest, and Macbeth kills him in his sleep. Macbeth then frames Duncan’s attendants and takes the throne after Duncan’s sons flee in fear.

A common mix-up is King Cawdor: Macbeth receives the title Thane of Cawdor before Duncan’s murder, but Cawdor is not the king. Malcolm, Duncan’s elder son, eventually succeeds Macbeth, while Banquo is Macbeth’s friend and later victim.