Questions on an ATL War of the Austrian Succession

I working on an ATL where the French win decisively at Dettingen. After that Noailles and De Broglie regroup the French armies and launch a counter attack against Prince Charles of Lorraine, and evict the Austrians from Bavaria. The French go on to take Austria and Bohemia later. Whilst the Austrian Netherlands are overran by the French and in Italy the French-Spanish-Neapolitans win big. In the end the French alliance wins a massive victory. Austria ends up in Wittelsbach hands, Austrian Netherlands in French hands, Austrian Italy in Spanish hands.

So I have a few questions.

Would Britain make peace and quit the war after their King and continental army are segregated and captured at Dettingen. Or would the British fight on seeing as Frederick, the heir to the British throne hated his father and might continue the war in hopes of his father dying as a prisoner of the French (a comfortable prisoner).

Would Prussia reenter the war after the French begin winning big, or would Prussia stay peaceful and be content with the land it already took?

In Hungary I doubt the French could take it and I doubt the French would want the Wittelsbachs to have it as it would make them too powerful. Could the Hapsburg retain Hungary, or would the Hungarians declare independence (and get it considering the lack of Austrian troops)? And if the Hungarians were independent who would become their king? Or might the Wettins exchange Saxony for Hungary? With the French seeing the Wettins as valuable to prevent Russian expansion into Europe?

In Italy I have two ideas of what to do with the Spanish gains. The first is to give them all to Carlo di Borbone and have them become part of the Sicilian holdings. The other is to give them all to Felipe, the Duke of Parma. Which choice is better? And if Felipe was given all of them could he turn it into a kingdom, and what would that kingdom be called if he did?

I'll have some more questions later possibly, but for now let's focus on these.
 
Slow down. Why did the French, having been victorious at Dettingen, press into Austria and Bohemia? Firstly, the French were not at War with Austria at the time. They were only at war with Britain. All French troops in Germany has been as Auxiliaries of Bavaria. It wasn't till April of 1744 that the French declared war upon Austria and Sardinia.

Why wouldn't the French, if the Pragmatic army was defeated, go all the way to push on Austria, while not even at war with them? Hannover is much closer to the Rhine.

Alternatively, why wouldn't the French, if they did declare war on the Austrians a year early, not go after the Austrian-Netherlands first, as they did in 1744 OTL?

Prussia would reenter the war in anycase, because they had been the target of the Austrian's build up throughout most of 1743, and had been the target of the new coalition of Russia, Austria, Saxony and England. Russia and Sweden both bowed out after Dettingen, does that still happen TTL? Does the Botta conspiracy still happen?

The reasons behind Noailles and Broglie moving back into Austria is exactly because they are acting as auxiliaries of Bavaria. The Frencha times first need to evict the Austrians from Bavaria, so to keep Bavaria in the war. And from thee Charles of Bavaria takes them into Austria and Bohemia.

Meanwhile in France iLouis in wake of Dettingen decides to officially declare war on Austria and prepares more armies to join the fight. He raises an army that overruns the Austrian Netherlands and parts of the United Provinces of the Netherlands. And French also end up in Hanover at some point.

So Prussia was rejoining ok.

Sweden and Russia witness a longer Hat War with Russia exiting with Finland. And they both exit the larger Austrian War after the Hat War.
 
I think the Russians would still return most of Finland in exchange for Old Finland (that southeast corner east of the Kymi river) and putting Adolf Frederick on the throne.
And France declaring war on Austria had more to do with the fighting in Italy than in Germany
 
I think the Russians would still return most of Finland in exchange for Old Finland (that southeast corner east of the Kymi river) and putting Adolf Frederick on the throne.
And France declaring war on Austria had more to do with the fighting in Italy than in Germany

What exactly are you saying in regards to the French declaration of war?
 
It was the battle of Campo Santo in 1743. Pretty much indecisive, it stopped the Spanish invasion of Lombardy and was actually a big setback for the Bourbons. The French did support them practically from the start. but Louis XV felt guilty that he didn't help his uncle so the French became much more involved. The next year they sent Conti with 20,000 more men to help them.
 
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