Vytautas the Great

Vytautas the Great (; also known as Alexander c. 1350 – 27 October 1430) was a ruler of the Grand Duchy of Lithuania, first as regent for his cousin Jogaila (1392–1401) and then as the Grand Duke alongside him (1401–1430). He was also the prince of Grodno (1370–1382) and the prince of Lutsk (1387–1389), as well as claimant to the titles of King of the Hussites and King of Lithuania.

In modern Lithuania, Vytautas was an important figure in the national rebirth in the 19th century and is revered as a national hero. Vytautas is a popular male given name in Lithuania. In commemoration of the 500-year anniversary of his death, Vytautas Magnus University was named after him. Monuments in his honour were built in many towns in independent Lithuania during the interwar period from 1918 to 1939. Vytautas knew and spoke the Lithuanian language with his cousin Jogaila.

Source: Wikipedia — https://en.wikipedia.org/wiki/Vytautas_the_Great