III as Grand Duke. Shortly before his death in Lutsk in 1452, he bequeathed all his possessions in Podolia and Volynia to the Lithuanian state. Notes References Grand Dukes of Lithuania Gediminids 15th-century monarchs in Europe Converts to Roman Catholicism from pagan religions Lithuanian Roman Catholics Burials at Vilnius Cathedral 14th-century births 1452 deaths Year of birth uncertain Date of birth unknown