
Mormont himself chose Jon to be his STEWARD.
Game of Thrones Season 5, Episode 2

You're a STEWARD, Snow, not a ranger.
Game of Thrones Season 2, Episode 5

Your STEWARD.
Game of Thrones Season 2, Episode 1

Well, I hope you make a better ranger
than you do a STEWARD.
Game of Thrones Season 2, Episode 5

I was his STEWARD. In fact...
Game of Thrones Season 6, Episode 7