The Thane of Cawdor is killed for being a traitor, and Macbeth takes his position.
There was no name specified but it was the Thane of Cawdor.
That "most disloyal traitor, the Thane of Cawdor."
The guards; Macbeth kills them "in a fit of sorrow and rage."
Seyton appears to stay loyal to King Macbeth to the end, although many others abandon him.
At the beginning of the play in act 1 the Thane of Cawdor (the earlier one, not Macbeth) is a traitor, and also a guy called Macdonweald whom Macbeth defeats.
The traitor of King Duncan was Macbeth, who was the one who ordered his execution in the play "Macbeth" by William Shakespeare. Lady Macbeth and Macbeth conspired to murder King Duncan in order to seize power.
The Scottish traitor, Macdonwald.
Macdonwall
Yes, Macbeth was a very effective soldier as we are told by the bloody Sergeant in Act 1 Scene 2. He bisected the traitor Macdonweald.
Yes. The Thane of Cawdor was killed, because he was a traitor to King Duncan. Macbeth becomes the new Thane of Cawdor.
We have to distinguish here between being a traitor to Scotland and being a traitor to the king. Macbeth is certainly a traitor to his king by murdering him. But is he a traitor to Scotland? Perhaps in the sense that the atmosphere of unease and paranoia he creates with his own unease and paranoia does Scotland no good. However, look closely at Malcolm. Malcolm invades Scotland with an English army, and his closest confidant is Siward, an Englishman. His first act as king is to abolish the Scottish title of Thane and set up the English one of Earl. Culturally and politically he is betraying Scotland to the English.
The Thane of Cawdor
Macbeth was killed by Macduff in Act 5, Scene 8 of the play "Macbeth." Macduff reveals that he was not "of woman born" in a traditional sense, fulfilling the witches' prophecy that he is the only one who can defeat Macbeth.
MacDonwald the Thane of Cawdor(Whoops! Macbeth does, in fact, disembowel and decapitate Macdonwald, but Macdonwald is not the Thane of Cawdor.)
That is the definition of the word traitor.
That person is called a Traitor.