King Duncan rules Scotland and he has two sons. He is a very kind person, father, and ruler. In his country, the discipline reigns, the nation considers him a conscientious ruler. Though, his excessive subjugation and openness ruined him. He was betrayed by General Macbeth, who resolved to kill him and take his power. It is his good nature that strengthens the culpability of the traitor Macbeth in the play. Duncan was the personification of order and peace in Scotland. However, this discipline and tranquility will return to the country only when his son recaptures his throne from Macbeth.
Duncan I, King of Scots in the Essays