AHC\WI: Hanover-Denmark

Well it's certainly going to make the duchies of Schleswig, Holstein and Lauenburg even more important since they'll allow the union to have a land border. Which is going to be interesting considering all the fun that they caused in our timeline. Do you have any particular preference on which way the union goes, i.e. Denmark taking over Hanover or Hanover taking over Denmark, or general time period?
 
What does that do to the Kiel Canal ? That seriously impacted Denmark's economy by hitting the Sound Dues that shipping had to pay, pre Kiel. OTH, the canal itself charged fees, so the end result might be the same as far as the overall union was concerned.
 
This would make Denmark a German power on par with at least Bavaria and (Upper) Saxony. Perhaps it could be a serious contender for the dominance of North Germany if Denmark also controls Norway.
 
Hm. That means much bigger butterflies than just Denmark. Presumably Sophia marries someone else, and "someone else" becomes king of England. The Danish crown can be claimed through the female line (I think) , so it would be a matter of identifying a break in the male succession. Unfortunately, those Danes popped children like rabbits. The best might be a restoration of the deposed Christian II, he had two daughters. One marries into the Brunswick line, and then hand wave like mad.
 
The duchess of Lorraine (Christina of Denmark) had a daughter, Dorothea, who married Eric, duke of Brunswick-Calenburg. Likewise, Wilhelm V of Brunswick-Luneburg married Dorothea of Denmark, (youngest) daughter of the Danish king (can't remember which Frederik or Christian it was though).

Also, the OTL wife of George I was originally proposed as a marriage partner to the crown prince of Denmark according to one biography I read on George I. Sophia, in spite of being against George marrying her (and the lady likewise), spread rumors that the marriage did not come off, and also removed a possible marriage to the prince of Brunswick-Wolfenbuttel so that George I could marry her (who, when Sophie Dorothea heard of this, she declared "I will not marry the pig-snout" and promptly fainted.)

As to Danish kings without heirs, Christian IV is a good example - eldest and second (legitimate) son predeceased him without issue, Frederik III was his third son. He was married to a Hannoverian princess, too. Then the Danish succession crisis in the 19th century also came from kings who either had no male heirs, or male heirs that were unable to have children (because their wives were barren/they had bad relationships).
 
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