What is "navarro-aragonese"

Navarro-Aragonese was a Romance language spoken south of the middle Pyrenees and in part of the Ebro River basin in the Middle Ages. The language extended over the County of Aragón, Sobrarbe, Ribagorza, the southern plains of Navarre on both banks of the Ebro including La Rioja and the eastern fringes of Navarre ( Leire and around). The language was also spoken in major towns of Navarre (in Estella and Pamplona too) in a multilingual environment where Basque was the natural language, used by most of the people, Occitan was spoken by the Franks in their ethnic boroughs, while Hebrew was used for written purposes in the aljamas along with Basque and Navarro-Aragonese as vernaculars in their respective linguistic regions.