Gediminas (Ukrainian: Gedymin), ca 1275–ca 1340. Grand duke of Lithuania from 1316. During his reign most of Belarus and the Ukrainian territories of Turiv-Pynsk principality and northern Volhynia were incorporated into the Grand Duchy of Lithuania. Gediminas called himself ‘rex lithauanorum et multorum ruthenorum.’ Through dynastic alliances he controlled or influenced many other realms. His brother Theodore ruled Kyiv principality, his daughter Euphemia (Ofka) married Prince Yurii II Boleslav of Volhynia in 1331, and through marriage his son Liubartas became the prince of the Principality of Galicia-Volhynia in 1340.
[This article originally appeared in the Encyclopedia of Ukraine, vol. 2 (1989).]