She hadn't met a Robb, but she does know that name very well. She raises her eyebrow, because the knowledge of Winterfell and its people that she does have mostly starts and stops with Margaery's love life. She doesn't bring up her opinion, though, because she has only just met Jon.

"You could tell me about your home," Peggy offers. "I might not be from there, but I wouldn't mind hearing about it."