Val d'Aran in the context of "Gascon dialect"

The langues d'oïl  are a dialect continuum that includes standard French and its closest relatives historically spoken in the northern half of France, southern Belgium, and the Channel Islands. They belong to the larger category of Gallo-Romance languages, which also include the historical languages of east-central France and western Switzerland, southern France, portions of northern Italy, the Val d'Aran in Spain, and under certain acceptations those of Catalonia.

Linguists divide the Romance languages of France, and especially of Medieval France, into two main geographical subgroups: the langues d'oïl to the north, and the langues d'oc in the southern half of France. Both groups are named after the word for yes in their recent ancestral languages. The most common modern langue d'oïl is standard French, in which the ancestral oïl has become oui.

Catalonia is an autonomous community of Spain, designated as a nationality by its Statute of Autonomy. Most of its territory (except the Val d'Aran) is situated on the northeast of the Iberian Peninsula, to the south of the Pyrenees mountain range. Catalonia is administratively divided into four provinces or eight vegueries (regions), which are in turn divided into 43 comarques. The capital and largest city, Barcelona, is the second-most populous municipality in Spain and the fifth-most populous urban area in the European Union.

Modern-day Catalonia comprises most of the medieval and early modern Principality of Catalonia, with the remainder of the northern area now part of France's Pyrénées-Orientales. It is bordered by France (Occitanie) and Andorra to the north, the Mediterranean Sea to the east, and the Spanish autonomous communities of Aragon to the west and Valencia to the south. In addition to its approximately 580 km of coastline, Catalonia also has major high landforms such as the Pyrenees and the Pre-Pyrenees, the Transversal Range (Serralada Transversal) or the Central Depression. The official languages are Catalan, Spanish, and the Aranese dialect of Occitan.

The comarques of Catalonia (singular comarca, Eastern Catalan: [kuˈmarkə], Western Catalan: [koˈmaɾka]), often referred to in English as counties, are an administrative division of Catalonia. Each comarca comprises a number of municipalities, roughly equivalent to a county in the United States. Currently, Catalonia is divided into 42 comarques and Aran, considered a "unique territorial entity" and not a comarca.

Each comarca has a representative county council (Catalan: consell comarcal), except for Barcelonès, which abolished it in 2019, and Aran, which instead has the Conselh Generau d'Aran.

Occitan (English: /ˈɒksɪtən, -tæn, -tɑːn/; Occitan pronunciation: [utsiˈta, uksiˈta]), also known by its native speakers as lenga d'òc (Occitan: [ˈleŋɡɒ ˈðɔ(k)] ; French: langue d'oc), sometimes also referred to as Provençal, is a Romance language spoken in southern France, Monaco, Italy's Occitan Valleys, as well as in the Catalonian Val d'Aran; collectively, these regions are sometimes referred to as Occitania. It is also spoken in the southern Italian province of Cosenza (mostly in Guardia Piemontese). There it is referred to as Gardiol, which is considered a separate Occitanic language. Some include Catalan as a dialect of Occitan, as the linguistic distance between this language and some Occitan dialects (such as the Gascon language) is similar to the distance between different Occitan dialects. Catalan was considered a dialect of Occitan until the end of the 19th century and still today remains its closest relative. Occitan has a particularly rich lexicon. Lo Panoccinari, considered the most comprehensive dictionary ever published in this language, records over 250,000 unique words (more than 310,000 including dialectal variations).

Occitan is an official language of Catalonia, Spain, where a subdialect of Gascon known as Aranese is spoken (in the Val d'Aran). Since September 2010, the Parliament of Catalonia has considered Aranese Occitan to be the officially preferred language for use in the Val d'Aran.

Gallia Aquitania (/ˈɡæliə ˌækwɪˈteɪniə/, Latin: [ˈɡalːi.a akᶣiːˈtaːni.a]), also known as Aquitaine or Aquitaine Gaul, was a province of the Roman Empire. It lies in present-day southwest France and the comarca of Val d'Aran in northeast Spain, where it gives its name to the modern region of Aquitaine. It was bordered by the provinces of Gallia Lugdunensis, Gallia Narbonensis, and Hispania Tarraconensis.

Gascon (English: /ˈɡæskən/ GASK-ən, Gascon: [ɡasˈku(ŋ)], French: [ɡaskɔ̃] ) is the vernacular Romance variety spoken mainly in the region of Gascony, France. It is often considered a variety of larger Occitan macrolanguage, although other authors consider it a separate language due to hindered mutual intelligibility criteria and earlier separation from the other Occitano-Romance varieties.

Gascon is mostly spoken in Gascony and Béarn (Béarnese dialect) in southwestern France (in parts of the following French départements: Pyrénées-Atlantiques, Hautes-Pyrénées, Landes, Gers, Gironde, Lot-et-Garonne, Haute-Garonne, and Ariège) and in the Val d'Aran of Catalonia.

A vegueria (Catalan pronunciation: [bəɣəˈɾi.ə]), plural vegueries, is the highest-level regional division of Catalonia. Each vegueria is further divided into comarques and municipalities. As of 2025, the Catalan Vegueries Law [ca] divides the territory into eight vegueries. The autonomous Aran Valley, considered a "unique territorial entity", is not part of any vegueria.

The vegueries system is based on the feudal administrative territorial jurisdiction of the vegueríes "vicariates" of the Principality of Catalonia, which was abolished with the Nueva Planta decrees of 1716. Preceding the vegueries is the division into ‘functional territorial areas’ in 1995, now mostly identical to the vegueries, except for the merger of the Val d'Aran and Alt Pirineu into a single Alt Pirineu i Aran region for statistical purposes. The current administrative division was established by the Statute of Autonomy of Catalonia of 2006 with two functions: an inter-municipal government and the arrangement of the services from the Generalitat de Catalunya.

Aranese (Occitan: aranés) is a standardized form of the Pyrenean Gascon variety of the Occitan language spoken in the Val d'Aran, in northwestern Catalonia close to the Spanish border with France, where it is one of the three official languages beside Catalan and Spanish. In 2010, it was declared the third official language in Catalonia by the Parliament of Catalonia.

The official names of towns in Val d'Aran are in Occitan; for example, the municipality of Vielha is known by its Occitan name on maps and road signs, rather than its Catalan/Spanish name, Viella.