The conquest of Monzón by the Infante Pedro Historical milestone · Monzón, Cinca Medio, Huesca Image of Monzón, not of the place itself. The future Peter I, in his father Sancho Ramírez's lifetime, took in 1089 the fortress that dominated the ford of the Cinca; its fall opened the way to the plain for the Aragonese and foreshadowed the conquest of Barbastro and Huesca. 1089 Photo: pere prlpz (CC BY-SA 3.0) What to see and do in Monzón