Polish–Lithuanian–Muscovite Commonwealth mission arrived in Moscow, Boris Godunov was elected the new tsar. 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
Polish–Lithuanian–Muscovite Commonwealth a union would spell Catholic domination over the Orthodox religion. Polish–Lithuanian–Muscovite Commonwealth The Polish–Lithuanian–Muscovite Commonwealth was a proposed state that would have been based on a personal union between the Polish–Lithuanian Commonwealth and the Tsardom of Russia. A number of serious attempts, by various means, to create such a union took place between 1574 and 1658, and even as late as the latter part of the 18th century, but it has never materialized due to incompatible demands from both sides. The proposed union is known in Polish historiography as the "Triple Union" ("unia troista") and has also been called the