After early commonwealth victories (Battle of Klushino), which culminated in Polish forces entering Moscow in 1610, Sigismund's son, Prince Władysław of Poland, was briefly elected tsar. However, soon afterwards, Sigismund decided to seize the Russian throne for himself. This alienated the pro-Polish supporters among the boyars, who could accept the moderate Władysław, but not the pro-Catholic and anti-Eastern Orthodox Sigismund. Subsequently, the pro-Polish Russian faction disappeared, and the war resumed in 1611, with the Poles being ousted from Moscow in 1612 but capturing the important city of Smolensk (see "Siege of Smolensk (1609–1611)"). However, due to internal troubles in both the Commonwealth and Russia, little military action occurred between 1612 and 1617, when Sigismund made one final and failed attempt to conquer Russia. The war finally ended in 1618 with the Truce of Deulino, which granted the Commonwealth certain territorial concessions, but not control over Russia, which thus emerged from the war with its independence unscathed.