How did we miss the fact that Argus Filch killed Hermione’s mom on “Game of Thrones”?

The cast of Game of Thrones is so accomplished, we often see them in other films, TV shows, and plays. However, when you start to criss-cross the fandoms, some things can get pretty mind-blowing (in a weird, but fun way).
Let’s take a look at Thrones stars David Bradley (Walder Frey) and Michelle Fairley (Catelyn Stark) – both amazing actors, both former stars of Harry Potter.
That’s right, Walder Frey is feline-loving groundskeeper Argus Filch and Catleyn Stark is class factotum, Hermione Granger’s, mom.
Now, if you recall your Thrones history, you’ll also remember that Walder Frey was mainly responsible for a little thing called The Red Wedding.
I mean, we get it. Catelyn DID swear an oath to Walder.
#AWKWARD
But, then, it’s pretty dramatic to go and have the woman (and her family) slaughtered.
Family drama aside, DAMN. This means ARGUS FILCH KILLED HERMIONE’S MOM! Or, at least had her killed.
Now, if Hermione could just work her Obliviate charm on all of us, so we can forget about the awfulness at the Red Wedding…