The main external influences in the play are: King Duncan, The three witches and MacBeth's own wife, Lady MacBeth. Throughout this tragedy a lot of greed, ambition and the desire for power is shown through MacBeth's actions and saying. There is also a show of deep regret after MacBeth murdered Duncan.

There are many powerful external influences in MacBeth's life. One is Duncan and many others were grateful to MacBeth. He was admired by many of his fellow kinsmen. As Malcolm reported to the king 'For brave MacBeth- well deserves that name' A1 S2. When Duncan sees MacBeth after the battle, he says to MacBeth 'From hence to Inverness, and bind us further to you' A1 S4. This quote shows us than Duncan wishes to get better acquainted with MacBeth. Also by going to MacBeth's castle it shows us that he trust's MacBeth.

The witches are a very...