In this lecture, we consider (1) further theatrical conventions of Shakespeare's time, and the relationship between the current king (James I) and the construction and themes of Macbeth; (2) the sorrowful history of James' parents (Lord Darnley and Mary, Queen of Scots) and his fascination with witches, demons, and the supernatural, and (3) we explain the relationship between the the Viking King Sueno, Macdonwald, and the Thane of Cawdor and their battle with the lion/eagle Macbeth.