The fact that Lara was referencing people with whom Hermione was actually familiar meant more the her than she would have realized, and she let out a laugh, before pausing slightly to be properly astounded by it all.

"Prince William? Married with two children? Already?" And then she does the math, murmuring, "Well, I suppose he's not a teenager anymore, so that's not so strange... aside from the fact that I'm three years older than him." Did she have children in Lara's time? Was it possible that some Muggle version of her existed in this alternate England and she was married with children and a proper job? It was mind-boggling to think about.