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What if, during the War of Spanish Succession (1700-1714), the French army led by de la Feuillade managed to conquer the Citadel of Turin and beat off the relief army lead by the Duke of Savoy Vittorio Amedeo and by Prince Eugen?

The POD could be that on the 30th of August 1706 Piedmontese sapper Pietro Micca didn't blow up the gallery he was standing in and the surprise attack by the French grenadiers managed to infiltrate the inner citadel, maybe blowing up the powder stores and causing it to surrender.

After thus defeating the city's garrison, the French could have defeated or at least stalemated the now much outnumbered Austro-Savoyards.

Effects of this?

Savoy exits the war and there is a direct overland link between France and Milan, which could then be held for longer, maybe until the end of the war.

The siege of Toulon of 1707 won't happen, thus the French Fleet of the Levant won't be scuttled, which could tip the naval balance in France's favour, in the Mediterranean at least.

At war's end, France will probably annex at least Savoy and Nice, probably some other bits of Piedmont, which will become a French satellite (or could even be outright annexed): what will be the fate of Naples and Milan? Could one be given to the Duke of Lorraine or the Elector of Bavaria?
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