The Russian famine of 1601–03 killed perhaps 100,000 in Moscow. From 1610 through 1612, troops of the Polish–Lithuanian Commonwealth occupied Moscow, as its ruler Sigismund III tried to take the Russian throne. In 1612, the people of Nizhny Novgorod and other Russian cities conducted by prince Dmitry Pozharsky and Kuzma Minin rose against the Polish occupants, besieged the Kremlin, and expelled them. In 1613, the Zemsky sobor elected Michael Romanov tsar, establishing the Romanov dynasty. The 17th century was rich in popular risings, such as the liberation of Moscow from the Polish–Lithuanian invaders (1612), the Salt Riot (1648), the Copper Riot (1662), and the Moscow Uprising of 1682.