Festivities of San Mateo de Monzón Activity · Monzón, Cinca Medio, Huesca The main festival of Monzón is celebrated in honour of San Mateo, on 21 September, with peñas, brass bands (charangas), opening speeches (pregones), small fairground stalls, open-air dances (verbenas), concerts, early-morning dances, folklore, a musical revue and a town band; on the Sunday before festival week the Zagalas and Zagaletas are crowned on the plaza Mayor, and on the eve the Float Parade runs through the city's main streets. Since the early 1980s the municipal festival programme has been “free of charge”, with free open-air dances and concerts. Monzón is also the town where Charles V convened the general Cortes of the Crown of Aragon in 1528; while there he received the challenge letter from the French king Francis I, a challenge he accepted although the duel never took place. semana del 21 de septiembre Photo: Jose Alberto (Public domain) What to see and do in Monzón