And, for an earnest of a greater honour,
He bade me, from him, call thee thane of Cawdor:
In which addition, hail, most worthy thane!
For it is thine.
– William Shakespeare
Macbeth, Act 1, Scene 3. Ross has been sent by King Duncan to award Macbeth the title Thane of Cawdor as a reward for his defense of Scotland in war.