It's true. The Arryns have really died out. I put them as Ravenclaw just based on their heraldry and based on the eerie and general air aspect of their home. It totally seems like a Ravenclaw place to me.

Hmmmm... Rhaegar doesn't seem to me to have been a typical Targaryen, plus when push came to shove he made totally hotheaded and irrational decisions. I almost sorted them as Slytherins for their ruthlessness (burning people alive seems to be a theme) but they genuinely believe that their power is right and destined so I opted for Gryffindor.