The Occitano-Romance or Gallo-Narbonnese (Catalan: llengües occitanoromàniques; Occitan: lengas occitanoromanicas), or rarely East Iberian,^[2] is a branch of the Romance language group that encompasses the Catalan/Valencian and Occitan languages spoken in parts of southern France and northeastern Spain.^[3][4]

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Quick Facts Geographic distribution, Linguistic classification ...

Occitano-Romance
Gallo-Narbonnese East Iberian
Geographic distribution	France, Spain, Andorra, Monaco, Italy
Linguistic classification	Indo-European Italic Latino-Faliscan Latin Romance Italo-Western Western Romance Gallo-Iberian?[1] (unclassified) Occitano-Romance
Early forms	Old Latin Vulgar Latin Proto-Romance Old Occitan
Subdivisions	Catalan/Valencian Occitan Aragonese (possibly)
Glottolog	None
Occitan in shades of Purple, Catalan in shades of Red and Aragonese in shades of Yellow

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The group covers the languages of the southern part of France (Occitania including Northern Catalonia), eastern Spain (Catalonia, Valencian Community, Balearic Islands, La Franja, Carche, Northern Aragon), together with Andorra, Monaco, parts of Italy (Occitan Valleys, Alghero, Guardia Piemontese), and historically in the County of Tripoli and the possessions of the Crown of Aragon. The existence of this group of languages is discussed on both linguistic and political bases.

According to some linguists both Occitan and Catalan/Valencian should be considered Gallo-Romance languages. Other linguists concur as regarding Occitan but consider Catalan and Aragonese to be part of the Ibero-Romance languages.

The issue at debate is as political as it is linguistic because the division into Gallo-Romance and Ibero-Romance languages stems from the current nation states of France and Spain and so is based more on territorial criteria than historic and linguistic criteria. One of the main proponents of the unity of the languages of the Iberian Peninsula was Spanish philologist Ramón Menéndez Pidal, and for a long time, others such as Swiss linguist Wilhelm Meyer-Lübke (Das Katalanische, Heidelberg, 1925) have supported the kinship of Occitan and Catalan. Also, due to Aragonese not having been studied as much as both Catalan and Occitan, many people still label it as a Spanish dialect.^[5]

From the 8th century to the 13th century, there was no clear sociolinguistic distinction between Occitania and Catalonia. For instance, the Provençal troubadour, Albertet de Sestaró, says: "Monks, tell me which according to your knowledge are better: the French or the Catalans? And here I shall put Gascony, Provence, Limousin, Auvergne and Viennois while there shall be the land of the two kings."^[6] In Marseille, a typical Provençal song is called 'Catalan song'.^[7]

Most linguists separate Catalan and Occitan, but both languages have been treated as one in studies by Occitan linguists attempting to classify the dialects of Occitan in supradialectal groups, such is the case of Pierre Bec^[8] and, more recently, of Domergue Sumien.^[9]

• Supradialectal classification of Occitano-Romance according to P. Bec
• Supradialectal classification of Occitano-Romance according to D. Sumien

Both join together in an Aquitano-Pyrenean or Pre-Iberian group including Catalan, Gascon and a part of Languedocien, leaving the rest of Occitan in one (Sumien: Arverno-Mediterranean) or two groups (Bec: Arverno-Mediterranean, Central Occitan).

The answer to the question of whether Gascon or Catalan should be considered dialects of Occitan or separate languages has long been a matter of opinion or convention, rather than based on scientific ground. However, two recent studies support Gascon's being considered a distinct language. For the very first time, a quantifiable, statistics-based approach was applied by Stephan Koppelberg in attempt to solve this issue.^[10] Based on the results he obtained, he concludes that Catalan, Occitan, and Gascon should all be considered three distinct languages. More recently, Y. Greub and J.P. Chambon (Sorbonne University, Paris) demonstrated that the formation of Proto-Gascon was already complete at the eve of the 7th century, whereas Proto-Occitan was not yet formed at that time.^[11] These results induced linguists to do away with the conventional classification of Gascon, favoring the "distinct language" alternative.^{[citation needed]} Both studies supported the early intuition of late Kurt Baldinger, a specialist of both medieval Occitan and medieval Gascon, who recommended that Occitan and Gascon be classified as separate languages.^[12][13]