. "Muslim (Zaragozan) victory" . . "Battle of Piedra Pisada"@en . "MuslimZaragoza" . . . . "1084-12-25Z"^^ . . "On 25 December 1084, at the Battle of Piedra Pisada, the Taifa of Zaragoza fought and probably defeated the Kingdom of Aragon on the road south from Naval to El Grado. The battle was a minor engagement of the ongoing Reconquista of Aragon, the process by which the riverine valleys of the southern slopes of the Pyrenees were gradually conquered and returned, after centuries of Muslim rule, to the control of Christian princes."@en . "ChristianAragon" .