 A small part of Rus' (Transcarpathia, now mainly a part of Zakarpattia Oblast), was subordinated to the Kingdom of Hungary in the 11th century.By the 15th century the Moscow principality (or "Muscovy", "Moscovian Rus/Ruthenia") had established its sovereignty over a large portion of ancient Ruthenian territory, including Novgorod and Pskov, and began to fight with Lithuania over the remaining Ruthenian lands.In 1547 the Moscow principality adopted the title of The Great Principat of Moscow and Tsardom of the Whole Rus and claimed sovereignty over "all the Rus'" — acts not recognized by its neighbour Poland.