Some people will recognise the begining from
https://www.alternatehistory.com/discussion/showthread.php?t=98682&highlight=Poltava and its true. I have taken the start from there and begun a entire new TL
I will continue the TL as far as i can, maybe even the end of days. Give me comments please or the TL ends before 1799.
Some of the names are the same as OTL to make it simpler for the reader
1709. Sweden is at war with Russia and is holding Poltava under a very inefficient siege, mostly to buy time. In June Sweden attacks the Russians and suffer the greatest military defeat ever.
They could have won if the scouted some more, so here goes
The Swedes commanders know the plan, and at dawn they rush through the Russian defensive barrier, cavalry goes north of the big Russian camp and blocks the retreat route. The infantry attacks from the south. The camp has defenses in three directions, east there is almost impossible to go, only one route down to the river. Panic strikes the Russian defenses and Peter decides to surrender.
20,000 Swedes again defeats 40,000 Russians. Russia agrees in the peace talks to give back the Baltic provinces to Sweden, St Petersburg and Ingenmanland is back in Swedish hands, St Petersburg becomes Karlsborg. Sweden takes Novgorod and moves its boder further east and takes Arkhangelsk and the oblast surrounding it. Ukraine becomes a free nation
The swedish army moves back to Poland for reorganisation. It takes 4 months to get there and when they arrive outside Warsaw Charles have 15,000 men left of the 35,000 he started with, but Russia is in turmoil.
In November Russian Tsar Peter is killed in an assassination led by followers of his son Alexei and Russia plunges deeper into chaos and a civil war begins in Russia.
Charles have gone back to Stockholm and gotten a big celebration. He then orders that a swedification of the eastern provinces should begin in the same way as his father and grandfather did in Skane. The orthodox religion would officially be in place, but small things in it would change in more and more to protestantism. The serfdom was to be abolished. In the baltic provinses the priests would begin holding their cermonies in Swedish. In Finland Charles went further, all schools(run by the church) were to teach swedish and not talk any finish.
The swedish ally Poland saw the need for transformation and with a little help from the swedish troops in the country the king of Poland, Stanisław Leszczyński managed to change the constitution so that one nobel couldnt veto a decission.
France asks Sweden to interveen in the war of the Spanish succession, but Sweden is exhausted and can only interveen as a mediator.
1710 The swedification of the eastern half of the swedish empire goes on. The Russian civil war between now crowned Tsar Alexei, count Boris Kurakin and count Menshikov went on and grew in heat. Tsar Alexei asked the swedes for help and count Menshikov asked Poland for help. Both nation sent wellwishes, but no military aid. Denmark begin talks with Prussia about an alliance. Prussia wants to finish the war for the spanish crown before entering another war.
Since it now was peace Charles needed a heir to the swedish throne and sent out diplomats to search for suitable princesses in Europe, but he wanted to avoid Denmark that he didnt trust. He found Charlotte Christine of Brunswick-Lüneburg most intressted and by marrying her he would be related in marriage to the Austrian emperor Charles.