Kęstutis

Grand Duke of Lithuania

1297 Senieji Trakai, Grand Duchy of Lithuania

1382 (85) Kreva, Grand Duchy of Lithuania

Incumbent

Grand Duke of Lithuania Kęstutis seal from 1379 Litas commemorative coin dedicated to Kęstutis Kęstutis (Latin: Kinstut, Lithuanian pronunciation:  ; c. 1297 – 3 or 15 August 1382) was a ruler of medieval Lithuania. He was the Duke of Trakai and governed the Grand Duchy of Lithuania, 1342–1382, together with his brother Algirdas (until 1377), and with his nephew Jogaila (until 1381). He ruled over the Lithuanians and Ruthenians. The name "Kęstutis" is a derivative from the old form of the name Kęstas, which is a shortened version of such Lithuanian names as Kęstaras, Kęstautas (there kęs-ti means to cope). Historic writing sources reflect different Lithuanian pronunciation.