What year was the play written in which the Third Murderer appears?
Third Murderer:  He appears in one scene (3.3), joining the First and Second Murderers to assassinate Banquo and Fleance, at the orders of Macbeth. Banquo: Lord Banquo , the Thane of Lochaber, is a character in William Shakespeare's 1606 play "Macbeth".
1606