Latgale is the language spoken by the Latgalian people in Latgale - the eastern part of Latvia. Some linguists consider the Latgalian language to be a separate language, although in Latvia “written Latgalian language” is officially considered to be “a historical type of the Latvian language”. This language is spoken by 150,000 people, some of whom live in Russia. The Latgalian Wikipedia has 449 articles. ')
The Yakut language is the language of the Yakuts, it belongs to the Turkic group of languages. 456,000 people speak Yakut. There are 499 articles in the Yakut Wikisource .