This is a nice, affordable guest house right by the fort/castle in Belmonte.
Afaik, there are only three rooms and a restaurant. The building is extremely well-maintained, tidy, and clean. The room is relatively spacious, large closet, private bathroom, tv, Juliette balcony.
My companion stayed at a nearby poussada on his last trip here and said that the facilities are comparable (for 1/5 the price) but that the atmosphere is obviously better/special at the poussada.