Kingdom of Sardinia enters 7 Years War

OK, I'm looking for validation if this is feasible:

1758 - The 7 Years War isn't going well for the French/Austrian/Russian allies. Frederick the Great somehow manages to hang on in the face of being terribly outnumbered. Britain is on the offensive in America and India and subsidizing a large German Army in Hanover.

1758 - Charles III inherits Spain. He was previously King of Naples, which he loved and his subjects love him. Previous agreements were that the historical ties between the Thrones of Spain and Naples can't be reunited. However, he wants to keep both.

1758 - France offers a compromise.
1. Spain enters the war on the side of France/Austria/etc thus giving another enemy to the beleagured British. This indirectly helps Austria by sapping British resources away from Germany and keeps France their ally. France had been considering making a seperate peace. France is barely holding on in the Americas and is threatened to lose much of their empire. Spain's fleet and manpower in Americas will help offset this.
2. Spain and Naples, in the face of previous treaties, are allowed to enter into personal union.
3. The Grand Duchy of Tuscany, the acquired duchy of the Holy Roman Emperor (and husband of Maria Theresa) was intended to go to a younger son as a cadet branch of Habsburgs. Instead, this is allowed by agreement of France and Spain to be joined to the Habsburg's heriditary domains.

This is a secret treaty and Spain will enter the war in 1759.

However, King Charles Emmanuel of Sardinia (and Duke of Piedmont, Savoy, etc basically much of northwest Italy) was unaware of all this. The original plan was for a second son to be given Naples, thus diluting the power of the Bourbons. Also, if Austria regained Silesia, then a complicated formula had been worked out to maintain the balance of power in Europe. Austria would give the Austrian Netherlands to the Bourbon Duke of Parma, whom would give part of his Parmese Duchy to Sardinia.

Charles Emmanuel is furious to find he won't acquire anything and at Bourbon aggrandization. He decides to invade Parma, believing his small but efficient army can defeat Parma and the poorly maintained Spanish Army/Navy (if they even bothered to help).

It never occurs to him that France, Austria and Spain/Naples had made this secret treaty. At worst, he thought he'd only face a declining Spain. Unfortunately, he learns too late, after his forces overrun much of Parma, that France and Spain/Naples are bound by treaty.

Though France is busy elsewhere, they offered 20K soldiers to augment Spain's 30K and Parma's forces. Much of Savoy and Piedmont are overrun. Meanwhile the Island of Sardinia is taken by a joint Franco-Spanish-Neopolitanease fleet. Britain offers to help but can't provide enough of a fleet in the Med.

Charles Emmanuel begs Austria for help, despite being obviously busy with Prussia. The Habsburgs are always the first to oppose their heriditary enemy's ambitions. He is shocked to find that Austria was a willing participant in this agreement. Not only Bourbon Power in Italy was augmented rather than fragmented, but the Habsburg influence would permanantly increase as well to "maintain the balance of power" by permanently gaining Tuscany. Sardinia would literally be surrounded by Bourbons and Habsburgs.

Irritated by Charles Emmanuel's actions, France, Spain and Parma exact a price. By 1759, Savoy and Nice are claimed by France, a few border areas of Piedmont by Parma, and the Island of Sardinia by a jubilant Charles III of Spain/Naples who is thrilled to reap such dividends so quickly with so little effort. Piedmont is reduced from a 2nd tier to a 3rd tier power, Charles Emmanuel's title of "King" is gone with Sardinia, he is reduced to a Duke.

Charles III promptly turns his attention to Gibraltar, largely ignoring his promise to help France in America.

Given that Britain will have to expend more resources to defend Gibraltar (thus stripping them from Germany and America), both France and Austria consider this a win and continue along their own paths.

Does this sound even remotely feasible?

Thanks.
 
If the invasion of Portugal is anything, the Spanish army performance is going to be pathetic.

Also, France sending so many people to Piedmont is probably sapping their Westphalian-Hannover front, which isn't really good.
 
If the invasion of Portugal is anything, the Spanish army performance is going to be pathetic.

Also, France sending so many people to Piedmont is probably sapping their Westphalian-Hannover front, which isn't really good.

I agree, both the Bourbon Powers had failed to keep up with Prussia and, to a lesser extent, Great Britain's attempts to update their military organization.

Both Spain and France spent two decades attempting to bring them up to speed, eventually reaching their height at the American Revolutionary War (good for the Americans). However, incompetant rulers wasted much of this gain and the gap between the Bourbon and Protestant Powers had expanded again by the Napoleonic Wars.
 
OK, I'm looking for validation if this is feasible:

1758 - The 7 Years War isn't going well for the French/Austrian/Russian allies. Frederick the Great somehow manages to hang on in the face of being terribly outnumbered. Britain is on the offensive in America and India and subsidizing a large German Army in Hanover.

1758 - Charles III inherits Spain. He was previously King of Naples, which he loved and his subjects love him. Previous agreements were that the historical ties between the Thrones of Spain and Naples can't be reunited. However, he wants to keep both.

1758 - France offers a compromise.
1. Spain enters the war on the side of France/Austria/etc thus giving another enemy to the beleagured British. This indirectly helps Austria by sapping British resources away from Germany and keeps France their ally. France had been considering making a seperate peace. France is barely holding on in the Americas and is threatened to lose much of their empire. Spain's fleet and manpower in Americas will help offset this.
2. Spain and Naples, in the face of previous treaties, are allowed to enter into personal union.
3. The Grand Duchy of Tuscany, the acquired duchy of the Holy Roman Emperor (and husband of Maria Theresa) was intended to go to a younger son as a cadet branch of Habsburgs. Instead, this is allowed by agreement of France and Spain to be joined to the Habsburg's heriditary domains.

This is a secret treaty and Spain will enter the war in 1759.

However, King Charles Emmanuel of Sardinia (and Duke of Piedmont, Savoy, etc basically much of northwest Italy) was unaware of all this. The original plan was for a second son to be given Naples, thus diluting the power of the Bourbons. Also, if Austria regained Silesia, then a complicated formula had been worked out to maintain the balance of power in Europe. Austria would give the Austrian Netherlands to the Bourbon Duke of Parma, whom would give part of his Parmese Duchy to Sardinia.

Charles Emmanuel is furious to find he won't acquire anything and at Bourbon aggrandization. He decides to invade Parma, believing his small but efficient army can defeat Parma and the poorly maintained Spanish Army/Navy (if they even bothered to help).

It never occurs to him that France, Austria and Spain/Naples had made this secret treaty. At worst, he thought he'd only face a declining Spain. Unfortunately, he learns too late, after his forces overrun much of Parma, that France and Spain/Naples are bound by treaty.

Though France is busy elsewhere, they offered 20K soldiers to augment Spain's 30K and Parma's forces. Much of Savoy and Piedmont are overrun. Meanwhile the Island of Sardinia is taken by a joint Franco-Spanish-Neopolitanease fleet. Britain offers to help but can't provide enough of a fleet in the Med.

Charles Emmanuel begs Austria for help, despite being obviously busy with Prussia. The Habsburgs are always the first to oppose their heriditary enemy's ambitions. He is shocked to find that Austria was a willing participant in this agreement. Not only Bourbon Power in Italy was augmented rather than fragmented, but the Habsburg influence would permanantly increase as well to "maintain the balance of power" by permanently gaining Tuscany. Sardinia would literally be surrounded by Bourbons and Habsburgs.

Irritated by Charles Emmanuel's actions, France, Spain and Parma exact a price. By 1759, Savoy and Nice are claimed by France, a few border areas of Piedmont by Parma, and the Island of Sardinia by a jubilant Charles III of Spain/Naples who is thrilled to reap such dividends so quickly with so little effort. Piedmont is reduced from a 2nd tier to a 3rd tier power, Charles Emmanuel's title of "King" is gone with Sardinia, he is reduced to a Duke.

Charles III promptly turns his attention to Gibraltar, largely ignoring his promise to help France in America.

Given that Britain will have to expend more resources to defend Gibraltar (thus stripping them from Germany and America), both France and Austria consider this a win and continue along their own paths.

Does this sound even remotely feasible?

Thanks.
I don't think this is likely. The Sardinians have little to gain and much to lose from this. Not only that, but up until the Battle of Assietta they were in position to be crushed in the last coalition war they were involved in. Frederick blundered his way into the 7 years war and came out of it by tbe skin of his teeth. Charles Emmanuel wasn't a general at Fredericks level, but he was a better politician. He'd have stayed out of it.
 
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