Languages attested from the 11th century

Romance language belonging to the Rhaeto-Romance family, spoken in the Friuli region of northeastern Italy

stage of the English language from about the 12th through 15th centuries

Romance language formerly spoken in the Iberian Peninsula

historical form of High German

langue d'oïl formerly spoken in the British Isles

lingua franca of the Mediterranean Basin between the 11th and 19th centuries

main language of the Tangut ethnic people in Xi Xia (Western Xia) dynasty, now extinct

Judeo-Provençal, Judæo-Occitan or Judæo-Comtadin, are the names given to the varieties of Occitan or Provençal languages historically spoken and/or written by Jews in the South of France, and more specifically in the Comtat Venaissin area by Papal Jews.

extinct language

form of the Turkish language spoken in Anatolia from the 11th to 15th centuries

Navarro-Aragonese was a Romance language once spoken in a large part of the Ebro River basin, south of the middle Pyrenees; the dialects of the modern Aragonese language, spoken in a small portion of that territory, can be seen as its last remaining forms. The areas where Navarro-Aragonese was spoken might have included most of Aragon, southern Navarre, and La Rioja. It was also spoken across several towns of central Navarre in a multilingual environment with Occitan, where Basque was the native language.