Castle of Trasmoz Monument · Trasmoz, Tarazona y el Moncayo, Zaragoza A castle located near the Sierra del Moncayo, in one of the most disputed enclaves on the border between the kingdoms of Aragon and Navarre; it already existed in 1185, when the territory belonged to Navarre, and later passed to the Crown of Aragon through the mediation of Alfonso II. After the conquest of Navarre by Fernando II and the end of the noble disputes, it was abandoned. Hexagonal in plan, with towers from the 13th to the 15th centuries and a square keep at its centre, the oldest surviving element, it is the only excommunicated castle in Spain, linked to the legend of witchcraft in Trasmoz. Gustavo Adolfo Bécquer collected its legends in Cartas desde mi celda after staying at the guesthouse of the Monastery of Veruela. Photo: Juanje 2712 (CC BY-SA 3.0) What to see and do in Trasmoz