Añón in the War of the Two Pedros Historical milestone · Añón de Moncayo, Tarazona y el Moncayo, Zaragoza Image of Añón de Moncayo, not of the place itself. The castle of Añón, with five towers and masonry walls, formed part of the Aragonese defensive line facing Castile. In 1363, during the War of the Two Peters, the stronghold fell into Castilian hands along with others of the Moncayo foothills. 1363 Photo: Txemari. (Navarra). (CC0) What to see and do in Añón de Moncayo