
Jon will be Warden of the North,
so a good relationship seems likely.
Game of Thrones Season 8, Episode 4

son of Roose Bolton, Warden of the North.
Game of Thrones Season 4, Episode 8

Roose Bolton is Warden of the North
by the grace of my father.
Game of Thrones Season 5, Episode 6

Pledge your banners to House Bolton,
swear loyalty to me as Warden of the North,
Game of Thrones Season 6, Episode 3
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"Ramsay Bolton, Lord of Winterfell
and Warden of the North."
Game of Thrones Season 6, Episode 4