
Thirteen.
Vikings Season 1, Episode 3

I've demanded a meeting of the Thirteen.
One of them did this or knows who did.
Game of Thrones Season 2, Episode 7

Thirteen!
Game of Thrones Season 2, Episode 4

HARALDSON: What age are you, boy?
Thirteen.
Vikings Season 1, Episode 3

The Thirteen have spoken.
Game of Thrones Season 2, Episode 4