Catelyn frowned, disquieted. “I had understood that Lysa’s boy was to be fostered with Lord Tywin at Casterly Rock.” “No, it was Lord Stannis,” Walder Frey said irritably. “Do you think I can’t tell Lord Stannis from Lord Tywin? They’re both bungholes who think they’re too noble to shit, but never mind about that, I know the difference.