Could Ivan IV, tsar of Russia, somehow be elected king of Poland and grand Duke of Lithuania after Sigismund II's death in 1572? Assuming the answer is yes, could such an union spark a war in Eastern Europe? I doubt states like Sweden, the Habsburg dominions and the Ottoman Empire would like having a giant new empire that stretches from Warsaw to Kazan sitting right at their doorstep. Plus, what would be Ivan's relations with the szlachta? Probably terrible, given his autocratic nature.
 
Could Ivan IV, tsar of Russia, somehow be elected king of Poland and grand Duke of Lithuania after Sigismund II's death in 1572? Assuming the answer is yes, could such an union spark a war in Eastern Europe? I doubt states like Sweden, the Habsburg dominions and the Ottoman Empire would like having a giant new empire that stretches from Warsaw to Kazan sitting right at their doorstep. Plus, what would be Ivan's relations with the szlachta? Probably terrible, given his autocratic nature.
Not necessarily. IIRC, Ivan's candidacy was favored by the poorer aristocracy, who wanted him to inflict some of that autocracy on the magnates as he had done on the Boyars.
 
Not necessarily. IIRC, Ivan's candidacy was favored by the poorer aristocracy, who wanted him to inflict some of that autocracy on the magnates as he had done on the Boyars.
This, if everything else is worked out, may end up as an attractive agenda for the nobility, especially if some of the confiscated lands goes nobility’s way and the same goes for a guaranteed monetary payments and land grants for military service. Of course, religion is still a big issue, especially in Poland. Of course, a risk of a conflict between Ivan’s autocratic habits and the Polish …er… “constitutionalism” 😜 is a realistic possibility and Ivan hardly can deal with this issue the same way he dealt with the Russian “constitutionalism” (creation of the separate oprichnina “state” which existed in parallel with the traditional state ruled by the boyars).

As for the neighbors, at that time neither Denmark nor Sweden are major military powers capable of preventing creation of the union or even seriously curbing its territorial appetites, especially in Livonia.
 
This, if everything else is worked out, may end up as an attractive agenda for the nobility, especially if some of the confiscated lands goes nobility’s way and the same goes for a guaranteed monetary payments and land grants for military service. Of course, religion is still a big issue, especially in Poland. Of course, a risk of a conflict between Ivan’s autocratic habits and the Polish …er… “constitutionalism” 😜 is a realistic possibility and Ivan hardly can deal with this issue the same way he dealt with the Russian “constitutionalism” (creation of the separate oprichnina “state” which existed in parallel with the traditional state ruled by the boyars).

As for the neighbors, at that time neither Denmark nor Sweden are major military powers capable of preventing creation of the union or even seriously curbing its territorial appetites, especially in Livonia.
Yeah, Ivan's character would definitely be a problem. What about Austria, could they do something or are they too busy fighting their own wars? Last but not least, what could happen to Ducal Prussia?
 
This, if everything else is worked out, may end up as an attractive agenda for the nobility, especially if some of the confiscated lands goes nobility’s way and the same goes for a guaranteed monetary payments and land grants for military service. Of course, religion is still a big issue, especially in Poland.
I wonder if Ivan couldn't maneuver around the religion issue by working out a "Union of Brest." He stays in the Slavonic Rite, and enters communion with the Pope, and generally reaches an agreement that the Latin Rite is not to expand any further in his domains.
 
I wonder if Ivan couldn't maneuver around the religion issue by working out a "Union of Brest." He stays in the Slavonic Rite, and enters communion with the Pope, and generally reaches an agreement that the Latin Rite is not to expand any further in his domains.
Interesting idea but his “charming” personality is still an issue: it would be very difficult for him not to be a sadist he was.
 
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