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
In 1995, Latvia signed, and in 2005 ratified the Council of Europe's Framework Convention for the Protection of National Minorities. When ratifying it, the Latvian Saeima (Parliament) made two declarations (worded as reservations) limiting the implementation of Articles 10 and 11. As at 2008, Latvia did not plan to sign the European Charter for Regional or Minority Languages.