The Battle of Alcoraz took place between 1094 and 1096 outside Huesca, pitting the besieging forces of Peter I of Aragon and Navarre against the allied forces of Al-Musta'in II of the Taifa of Zaragoza and García Ordóñez de Nájera and Gonzalo Núñez de Lara representing Alfonso VI of León and Castille. Wikipedia