King Wladislaus II of Poland

Władysław II Jagiełło

Grand Duke of Lithuania (1377–1434); King of Poland (1386–1434)

Jogaila, later Władysław II Jagiełło, was Grand Duke of Lithuania beginning in 1377 and starting in 1386, becoming King of Poland as well. As Grand Duke, he ruled Lithuania from 1377 to 1381 and from 1382 to 1401, at which time he became the Supreme Duke of Lithuania in exchange…