I think they should, unless travel becomes impossible. It would be appropriate.

[Apparently because he says so.]

Thomas has been at me for months to venture farther than the estate, and while I suspect he means playing at soldier, he's not wrong that he needs a wider view of the world. This will give him one, in a variety of ways.

[He considers her, then adds:]

If you like, I will give you the rest of my guest list first, when I draw it up. There will be a variety of reasons, but I don't want anyone who you so dislike that you would have to waste energy hiding your distaste even if they were in a crowd. We can discuss it before I start pressing my point with the Diplomacy division.

[Romain does know his granddaughter.]

Other than the venue, what do you need?