Asturian is the historical language of Asturias, portions of the Spanish provinces of León and Zamora and the area surrounding Miranda do Douro in northeastern Portugal. Like the other Romance languages of the Iberian peninsula, it evolved from Vulgar Latin during the early Middle Ages. Asturian was closely linked with the Kingdom of Asturias (718–910) and the ensuing Leonese kingdom. The language had contributions from pre-Roman languages spoken by the Astures, an Iberian Celtic tribe, and the post-Roman Germanic languages of the Visigoths and Suevi.