WI Louis XV and his son die in 1744?

From the Wikipedia article about Louis, Dauphin of France, the son of Louis XV:

"He was bitterly disappointed when his father would not permit him to join the 1744 campaign in the War of the Austrian Succession. When his father became deathly ill with fever at Metz, Louis disobeyed orders and went to his bedside. This rash action, which could have resulted in the deaths of both Louis and his father, resulted in a permanent change in the relations between father and son."

This episode happened between August 4th and August 15th 1744. Apparently Louis XV suffered from fevers and disentery. So, WI the disease was more serious, and took not only the king but his son? How would it affect the Austrian Succession War? And how would the French succession be affected? Would one the Spanish Bourbons get France (but surely having to renounce Spain in order to ensure it) or would the Duke of Orleans claim the throne?
 
Just another doubt: if the Spanish Bourbons get the French throne, how would be the swap: Ferdinand goes to France and Charles gets Spain, or Ferdinand would remain in Madrid and his brother would become Charles X?
 
Just another doubt: if the Spanish Bourbons get the French throne, how would be the swap: Ferdinand goes to France and Charles gets Spain, or Ferdinand would remain in Madrid and his brother would become Charles X?
Important implications given Charles was an excellent ruler.French Revolution most likely gets butterflied away or at the very least pushed back for decades.
 
Important implications given Charles was an excellent ruler.French Revolution most likely gets butterflied away or at the very least pushed back for decades.

But would he become king of France? Ferdinand was the senior heir after his father Philip (I forgot that Philip V was still alive by 1744, and could have become Philip VII of France before his sons could inherit) and if he is the new king then it would take 15 years before Charles could get the French throne (assuming Ferdinand is crowned and lives as long as IOTL).
 
But would he become king of France? Ferdinand was the senior heir after his father Philip (I forgot that Philip V was still alive by 1744, and could have become Philip VII of France before his sons could inherit) and if he is the new king then it would take 15 years before Charles could get the French throne (assuming Ferdinand is crowned and lives as long as IOTL).

If the Borbóns managed to successfully gain the throne (I assume that the Estates-General would have to be summoned to help work out the dispute, like what happened in 1317 when Salic law was debated) then no way they will keep both countries. Even when Philip V's succession rights were preserved in the early 1700s (before Utrecht) it was basically implied that he would give up Spain to a relative if he became King of France.

IDK exactly what would happen, considering the situation as it was. At the very least Philip V would have to abdicate to become Philippe VII. Beyond that I'm not sure. Would Philip of Parma become the successor in France as the next son without a throne or would Carlo of Naples be recognized as successor? Its a difficult mess to figure out, to be sure.
 
IDK exactly what would happen, considering the situation as it was. At the very least Philip V would have to abdicate to become Philippe VII. Beyond that I'm not sure. Would Philip of Parma become the successor in France as the next son without a throne or would Carlo of Naples be recognized as successor? Its a difficult mess to figure out, to be sure.

What are the chances of the Duke of Orleans? Could we have a War of French Succession right in the middle of the War of Austrian Succession?
 
What are the chances of the Duke of Orleans? Could we have a War of French Succession right in the middle of the War of Austrian Succession?

Difficult to say really. The Duc at the time was Louis d'Orléans, with his son Louis-Philippe I as his heir. Neither came across as particularly ambitious, especially the former who was living in an abbey at this point. They could attempt to claim the throne but I'm not sure how that would go. If the Duc d'Orléans was Philippe II or Louis-Philippe II then definitely. With the middle Duc's, I'm honestly not sure. Really it would depend on how the Estates-General rules. After all, this would be getting into the fundamental laws of the Kingdom, above the Parlements pay-grade.
 
The Orleans don't really have a chance with Philip's relation to the throne and Salic law. Philip V and his son Ferdinand would go to France, Carlo di Borbone would go to Spain early, and since Carlo doesn't have a son Philip, Duke of Parma gets Naples and Sicily. Now I'm unsure if Philip of Parma would be allowed to keep Parma, or would be forced to give it up.

Anyways it could result in the British putting more men into the War of the Austrian Succession seeing as the Spanish Borbons now own France as well. Which would make things more interesting.

Actually Philip didn't get Parma until the end of the Austrian succession war, so it would either stay with Austria or Felipe V's youngest son, Cardinal-Infante Luis would renounce his Cardinalate (something quite easy to do since he would later do so OTL) and become the reigning Duke. If the Former I can see Parma either being added to the Grand Duchy of Tuscany or, assuming that the d'Este dynasty still fails to produce a male heir, being in eventual personal union with Modena.
 
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