The Polish Inheritance of Mazovia

The Duchy of Mazovia had long been ruled by a line of the Piast Dynasty, but because of the power of Poland she most often followed the suggestions of Polish foreign policy. In 1526 the last Piast ruler died and the Polish crown inherited Mazovia. Exactly what would be done with the lands was not clear, but in the end it became a Royal fief. And later the new Polish capital would be placed in the sleepy hamlet of Warszawa.