You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
How feasible is it that the Poles, during the Time of Troubles, slice off a part of NW Russia (say from around Smolensk north to the Baltic) that becomes an independent puppet state which gradually converts to Catholicism? Presumably the Russians would grab it back as soon as they were strong enough, but could this Catholic-Russian people (Chernyarussians, perhaps) survive to this day? Marginally possible or ASB? What do you, the readers at home, think?