We found this hotel thanks to a comment on TripAdvisor, mentioning gluten-free options at the breakfast buffet.
The kitchen has a variety of gluten-free sweets and ciabatta in stock and will serve them at request. The buffet has an allergy information board, only in Italian. The juice fountain is marked as gluten-free.
We added our own gluten-free box of cornflakes to the breakfast
— Somewhat
— No gluten-free information on the menu
— Some
— Good