Aragonese language
Aragonese, which developed in parts of the Ebro basin, can be traced back to the High Middle Ages. It spread throughout the Pyrenees to areas where languages almost the same as modern Basque might have been spoken before. The Kingdom of Aragon (formed by the counties of Aragon, Sobrarbe and Ribagorza) expanded to the south from the mountains. It pushed the Moors farther south in the Reconquista and spreading the Aragonese language.