
Love is the death of DUTY.
Game of Thrones Season 1, Episode 9

but you will do your DUTY.
Game of Thrones Season 3, Episode 8

It is my solemn DUTY to protect
the people,
Game of Thrones Season 7, Episode 2

A sense of DUTY.
Game of Thrones Season 4, Episode 4

As your brother,
I feel it's my DUTY to warn you...
Game of Thrones Season 1, Episode 1