False Dmitriy I
With the legitimacy issues clouding the entire period of the rule of Boris Godunov, Russia submerged into even greater chaos upon his death, the Russian Time of Troubles, which was accompanied by a decisive Polish armed intervention, or the Polish–Muscovite War (1605–1618), commonly referred to in Russia as the "Polish intervention in the end-17th century". In the course of the Polish–Muscovite War, the Polish prince (later king) Władysław IV Vasa was briefly elected a Russian Tsar among other such strange developments like enthronement and short reign of False Dmitriy I, an impostor of tsar Ivan's son. However, Wladyslaw was never officially enthroned and his quick election remained in history as one of the fluke events of Russia's Time of Troubles.