Casimir IV was Grand Duke of Lithuania from 1440 and King of Poland from 1447 until his death in 1492. He was one of the most active Polish-Lithuanian rulers; under him, Poland defeated the Teutonic Knights in the Thirteen Years' War and recovered Pomerania.
Casimir IV, 17th-century depiction by an unknown artist
Lithuanian coin of Grand Duke Casimir IV Jagiellon with the Columns of the Gediminids and Vytis (Pogonia)
Tomb of Casimir IV in the Wawel Cathedral, late Gothic masterpiece by Veit Stoss
Casimir IV in advanced age, by Jan Matejko
Lithuanian is an East Baltic language belonging to the Baltic branch of the Indo-European language family. It is the language of Lithuanians and the official language of Lithuania as well as one of the official languages of the European Union. There are approximately 2.8 million native Lithuanian speakers in Lithuania and about 1 million speakers elsewhere. Around half a million inhabitants of Lithuania of non-Lithuanian background speak Lithuanian daily as a second language.
The oldest surviving manuscript in Lithuanian (c. 1503), rewritten from a 15th century original text.
Ethnolinguistic area of Lithuanians and the Lithuanian language in 1917 by Prussian Lithuanian professor Vilius Gaigalaitis (Wilhelm Gaigalat), the dashed areas represent linguistically mixed border areas where Lithuanians formed a large minority
Title page of Vyriausybės Žinios with articles of the 1922 Constitution of Lithuania. The sixth article established Lithuanian as the sole official language of Lithuania.
Linguistic areal of the Lithuanian language in Russia and German Prussia by Ethnographer Franz Oskar Tetzner in 1902
