sentences:  In this way fragile personal union between Grad Duchy of Lithuania and Kingdom of Poland was dissolved.The news in Kingdom of Poland about proclamation of Casimir as Grand Duke was met with hostility towards Lithuania, even to the point of military threats.Jonas Goštautas secured positions as palatine (voivode) of Trakai in 1433 (gift from Grand Duke Sigismund), and from 1443 palatine of Vilnius and Chancellor of Lithuania.