Jadwiga of Poland
After Casimir had died in 1370, he was succeeded by his nephew, King Louis I of Hungary, who in 1372 put Lviv together with the region of Galicia-Volhynia under the administration of his relative Władysław, Duke of Opole. When Władysław retreated from the post of its governor in 1387 Galicia-Volhynia became occupied by the Hungarians, but soon Jadwiga the ruler of Poland, and wife of Lithuanian Grand Duke Jogaila, invaded and incorporated it into the Polish Crown by Jadwiga of Poland. The city later served as the homage site of some of the vassals of the Kings of Poland.