The possibility of Anglo-Prussian Union in the late 1700s'

Hello all,
I have been eyeing up what I would like to commit to as my first timeline. My idea would be to somehow line up a possible dynastic union of Great Britain and Prussia, an alliance that would be fire-hardened in the Seven Years War, resulting in a unified British and German state far down the line. I know this is a bit of a hard one to pull because of the firm Hohernzollern grip on the Prussian throne, but I think it would be possible with the right PoD. I would love to hear everyone's thoughts and suggestions on this subject. (Keep in mind I want to flesh this out into a finished timeline and eventually migrate it to that forum.)
 
Have the future George II die at Oudenarde in 1708.

Six years later, when his father becomes King George I, GII's only child, 7yo Prince Frederick, accompanies his grandfather to England (OTL he was left behind in Hanover, but now he is the direct heir so he probably won't be). A few years later, still unmarried, he catches smallpox or something and dies.

In 1727, George I's daughter, Sophia Dorothea, becomes Queen of Gt Britain. She is married to King Frederick William I of Prussia. OTL the next in line (in 1757) would be Frederick the Great, but he wasn't born till 1712 so butterflies may intervene. But he had several brothers so there can still be a union of crowns.
 
Have the future George II die at Oudenarde in 1708.

Six years later, when his father becomes King George I, GII's only child, 7yo Prince Frederick, accompanies his grandfather to England (OTL he was left behind in Hanover, but now he is the direct heir so he probably won't be). A few years later, still unmarried, he catches smallpox or something and dies.

In 1727, George I's daughter, Sophia Dorothea, becomes Queen of Gt Britain. She is married to King Frederick William I of Prussia. OTL the next in line (in 1757) would be Frederick the Great, but he wasn't born till 1712 so butterflies may intervene. But he had several brothers so there can still be a union of crowns.

The problem here is any Union would last for only one generation, if even that long. Parliament tolerated having to deal with Hanover as the price of a Protestant dynasty, but adding in Prussia is a whole different can of worms. Realistically Parliament will do something to prevent such a union. Either a law forbidding Britain from entering into a personal union or something to that affect.
 
As I wrote I also in my project, where the intrepid George Augustus of Hanover he met his death in the Battle of Oudenarde (11 July 1708), the problem of succession not only in Hanover, but especially in Britain, it would have been stronger.
However, a direct succession of the Queen of Prussia would not have been so obvious and immediate.

In Chapter 1 «NEVER BACK», paragraph 3 «The first Hanoverian king» of my project https://www.alternatehistory.com/discussion/showthread.php?t=308735 , affront the problem.

Having as sole heir only the just born Frederick Louis, only son of the late George Augustus, the Elector of Hanover and Queen Anne of Great Britain (or perhaps more than the Parliament) would have moved immediately to overcome the serious problem of succession .

We must not forget that George Louis of Hanover, approximately up to 1730, had other male siblings living and, like him, who boasted Protestants rights to the English crown.

Excluded Maximilian William of Brunswick-Lüneburg (1666 – 1726), who had converted to Catholicism in 1692, remained Ernest Augustus (Osnabrück, 17.9.1674 – Osnabrück, 14.8.1728), both engaged in a military career at the service of Leopold I, Holy Roman Emperor, during the War of Spanish Succession, Prince-Bishop of Osnabrück in 1715 and created Duke of York, Albany and Earl of Ulster by his brother in 1716.
You would then sought a fertile wife for Ernest August to ensure the continuation of the dynasty.

The Queen of Prussia would come into play only after the early death of Frederick Louis, the childless death of Ernest August ...
And who says that George I could not divorce his first wife (or her murder in his gilded cage of Ahlden), remarriage and generate other children?
on the other hand, the future Queen Victoria when she was born, her father was 52 years old!


 
George I's siblings are in the line of succession, but only after his daughter and her offspring. There has never been a Salic Law in England, so she could be passed over only by Act of Parliament - and if Parliament can stomach a Guelph it can almost certainly stomach a Hohenzollern.
 
George I's siblings are in the line of succession, but only after his daughter and her offspring. There has never been a Salic Law in England, so she could be passed over only by Act of Parliament - and if Parliament can stomach a Guelph it can almost certainly stomach a Hohenzollern.

There's a BIG difference in tolerating Hanover and Brandenburg-Prussia. By this point the rivalry between Prussia and Austria had already began to develop and if a Hohenzollern ascended the throne Britain would inevitably become involved in the struggle. And considering that Parliament had already passed over 50 plus people with a better claim then the Hanovarians, removing the Hohenzollerns wouldn't be that hard.
 
George I's siblings are in the line of succession, but only after his daughter and her offspring. There has never been a Salic Law in England, so she could be passed over only by Act of Parliament - and if Parliament can stomach a Guelph it can almost certainly stomach a Hohenzollern.

... and considering that Parliament had already passed over 50 plus people with a better claim then the Hanovarians, removing the Hohenzollerns wouldn't be that hard.

I would not be surprised, in this specific case, if the British Parliament had made a law specifically to exclude the Queen of Prussia.
Moreover, the Parliament had already done this by depriving with laws illegal and illegitimate, the Stuarts and the heirs Catholics from their rights to the throne!
Of course you would have done everything possible to ensure the protection and preservation of Frederick Louis (think of the danger of the smallpox's epidemic in 1711/12, which has decimated many families reigned, Bourbon, Lorraine, Habsburgs ...), or they would have pushed George I to a new marriage.

 
Update

Ok, so I've done my homework and talked with Stolengood about his PoD, and I think I have a confident way of bringing Frederick the Great in as a monarch of the United Kingdom of Prussia, Hannover, Britain, and Ireland. I will make a new post where I'll start the actual TL and then post the link here. Cheers! :D
 
There's a BIG difference in tolerating Hanover and Brandenburg-Prussia. By this point the rivalry between Prussia and Austria had already began to develop and if a Hohenzollern ascended the throne Britain would inevitably become involved in the struggle.

In 1727 "begun" is the operative word. FtG's accession is still over a decade in the future, and the prospect of a Hohenzollern succession in Britain would be at least as likely to draw Prussia into a more pro-Austrian policy as GB into an anti-Austrian one. Perhaps FtG seizes West Prussia instead of Silesia, so that Austria nicks Galicia as compensation, so we get the First Partition of Poland a generation earlier. Or maybe he seizes Berg and Julich to which Prussia had some sort of claim.

Also, he had several brothers. So if Parliament didn't fancy a union of Crowns, they could have vested the succession in one of Sophia's younger sons, who could have been brought up in England. Of course we know that FtG will die childless, so the union would probably still have come, but no one knows that in 1714.
 
In 1727 "begun" is the operative word. FtG's accession is still over a decade in the future, and the prospect of a Hohenzollern succession in Britain would be at least as likely to draw Prussia into a more pro-Austrian policy as GB into an anti-Austrian one. Perhaps FtG seizes West Prussia instead of Silesia, so that Austria nicks Galicia as compensation, so we get the First Partition of Poland a generation earlier. Or maybe he seizes Berg and Julich to which Prussia had some sort of claim.

Also, he had several brothers. So if Parliament didn't fancy a union of Crowns, they could have vested the succession in one of Sophia's younger sons, who could have been brought up in England. Of course we know that FtG will die childless, so the union would probably still have come, but no one knows that in 1714.

But in 1714 FtG is the only (surviving) son of Frederick William I, August William will only be born in 1722. At least in OTL...
 
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