Grandfather.
Game of Thrones Season 3, Episode 7
My GRANDFATHER and uncle
were murdered here, weren't they?
Game of Thrones Season 1, Episode 4
That's my GRANDFATHER, Lord Rickard.
Game of Thrones Season 1, Episode 10
I wasn't originally meant to
marry your GRANDFATHER Luthor.
Game of Thrones Season 4, Episode 4
your brother, your GRANDFATHER...
Game of Thrones Season 5, Episode 7