Latgalian language
Originally Latgalians were a tribe living in modern Vidzeme and Latgale. It is thought that they spoke the Latvian language, which later spread through the rest of modern Latvia, absorbing features of the Old Curonian, Semigallian, Selonian and Livonian languages. The Latgale area became politically separated during the Polish–Swedish wars, remaining part of the Polish–Lithuanian Commonwealth as the Inflanty Voivodeship, while the rest of Latvians lived in lands dominated by Baltic German nobility. Both centuries of separate development and the influence of different prestige languages likely contributed to the development of modern Latgalian as distinct from the language spoken in Vidzeme and other parts of Latvia.
Language policy in Latvia
It should be noted that Latgalian was not considered a language separate from Latvian in any census, whether during the Soviet period, or since the restoration of independence. Therefore, no specific data on the number of its native speakers were available until the 2011 census. Then, 8.8. % of the population indicated they use Latgalian, described as a variety of Latvian.
Other than native speakers of Latvian and Russian, the numbers of speakers of different mother tongues recorded in the 2000 census were: