Asturian is one of the Astur-Leonese languages which form part of the Iberian Romance languages, close to Galician-Portuguese and Castilian and further removed from Navarro-Aragonese.
Asturian is part of the Astur-Leonese languages, which share characteristics with other Iberian Romance languages like Galician-Portuguese and Castilian, while differing more significantly from Navarro-Aragonese.