Mirandese language

The Mirandese language or "lhéngua mirandesa" is an Astur-Leonese language or language variety that is sparsely spoken in a small area of northeastern Portugal in Terra de Miranda (made up of the municipalities of Miranda do Douro, Mogadouro and Vimioso). 
Recognition.
The Assembly of the Republic granted it official recognition alongside Portuguese for local matters on 17 September 1998 with the law 7/99 of 29 January 1999. In 2001, Mirandese was officially recognised by the European Bureau for Lesser-Used Languages, which aims to promote the survival of the least spoken European languages.
Roots.
Mirandese has a distinct phonology, morphology and syntax. It has its roots in the local Vulgar Latin spoken in the northern Iberian Peninsula.
Mirandese is a descendant of the Astur-Leonese variety spoken in the Kingdom of León and has both archaisms and innovations that differentiate it from the modern varieties of Astur-Leonese spoken in Spain. In recognition of these differences, and due to its political isolation from the rest of the Astur-Leonese speaking territory, Mirandese has adopted a different written norm to the one used in Spain for Astur-Leonese.