Description: (Ruler)
Kęstutis served as the Grand Duke of Lithuania from 1342 to 1382, working closely with his brother Algirdas and nephew Jogaila. Holding the title of Duke of Trakai, he played a vital role in governing the Grand Duchy of Lithuania. Kęstutis was recognized for his strong leadership, strategic skills, and significant contributions to the growth and security of the Lithuanian state. His professional endeavors were characterized by military expertise, political astuteness, and a steadfast commitment to the progress of Lithuania.