Latvian language
The Middle dialect is spoken in central and Southwestern Latvia. Kursenieki language, which used to be spoken along Curonian Spit, is closely related to the varieties of middle dialect spoken in Courland. The dialect is divided into the Vidzeme variety, the Curonian variety and the Semigallian variety. The Vidzeme variety and the Semigallian variety are closer to each other than to the Curonian variety, which is more archaic than the other two. There are three intonations in the Middle dialect. In the Semigallian variety, "ŗ" is still used. Standard Latvian is based on the middle dialect.
Livonians
The Livonians, or Livs (Livonian: "līvlizt"), are a Finnic ethnic group indigenous to northern Latvia and southwestern Estonia. Livonians historically spoke Livonian, a Uralic language closely related to Estonian and Finnish. The last person to have learned and spoken Livonian as a mother tongue, Grizelda Kristiņa, died in 2013, making Livonian extinct. As of 2010, there were approximately 30 people who had learned it as a second language.