it is not only the SWORN duty of a maester
Game of Thrones Season 2, Episode 9
all of whom
have SWORN to kill for me?
Game of Thrones Season 7, Episode 3
She's SWORN to protect
the Stark girls, so...
Game of Thrones Season 8, Episode 4
Sworn to Renly Baratheon, Catelyn Stark,
and now my brother.
Game of Thrones Season 4, Episode 2
She's SWORN to protect
both of Catelyn Stark's girls.
Game of Thrones Season 7, Episode 6