Robb's wife Talisa was gutted, making her death even more horrific as her first thought was about her unborn child. She died as Robb and Catelyn looked on at what was supposed to be a grand affair and turned into The Red Wedding.
Tyrion: Let me give you some advice bastard. Never forget what you are. The rest of the world will not. Wear it like armor, and it can never be used to hurt you. Jon: What the hell do you know about being a bastard? Tyrion: All dwarfs are bastards in their father's eyes.