Macbeth: Banquo's Soliloquy In Macbeth, a play by William Shakespeare, Banquo's soliloquy at the beginning of the third act explains some of his present feeling towards Macbeth. He believes that Macbeth killed to become the King of Scotland. He explains that he is the one who will start a chain of kings, not Macbeth. Strangely enough, Banquo makes this discovery two scenes from his death, not giving him enough time to tell others the discovery. In the first three lines of the soliloquy, Banquo explains that Macbeth has become king just like the "weird women", or witches had prophesied. However, he also says that "