Сигизмунд Кейстутович
In 1440, Sigismund Kęstutaitis was assassinated by nobles who supported Švitrigaila, and Švitrigaila returned to rule Podolia and Volhynia. At the age of 70 (or 85, according to some sources), he was too old to resume his struggle for the Lithuanian throne and more importantly had no support from the Council of Lords led by Jonas Goštautas, that in June 1440 elected Casimir Jagiellon, brother of Polish King Władysław 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.