Does the menu acommedate gluten free

No, in medieval age gluten was not a problem.

Your Grace, we can accommodate gluten-free. We recommend that you reserve your seats over the phone at 1-888-935-6878. Our customer service representative will be able to make a note in your order. Also, please remind your server when you are seated in the arena. Have a wonderful time at the castle!

No they don't. It's a dinner show, they can't accommodate everyone's diet preferences.

I don't know, but their customer service was wonderful. I'm sure they'll be able to let you know, if you call them.

I know they have a vegetarian menu.