Also, show bran knows Aerys burned Rickard alive, and I don't think the Starks knew the truth in canon.
Catelyn sure didn't. (At least not prior to Jaime) I doubt that if Ned didn't tell her he would have told Bran who was all of 7 in the book the last time he saw him. That's even if Ned knew the whole story himself.
Why must I always be the isle of crazy alone in an ocean of sensibility? The should to everybody else’s shouldn’t? The I-will to their better-nots?