WI Maria Theresa of Spain dies before marrying Louis XIV?

What would happen if Maria Teresa of Spain had died say in 1658, before marrying Louis XIV and therefore before the peace treaty between France and Spain could have been concluded?

-How would the war end? Maybe France could be more interested in the schemes against Spanish Naples? (There appeared to be an attempt to make Christina of Sweden queen there, but it looks rather farfetched).

-what would be of the Bourbon and Austria dinasties? The OTL War of Spanish Succession would be butterflied, but maybe a similar situation could still emerge?
 
In terms of who marries Louis XIV, it would probably go to Margaret Theresa, her younger sibling who would have been 7 at the time of her death. Thus Louis will have to wait until 1665 before even attempting an heir. If her fertility goes as OTL Louis XIV will have to remarry, maybe to an Austrian Princess (and f Margaret Theresa is out of the picture then I can see someone like Marguerite Louise d'Orleans becoming the Holy Roman Empress.

Louis XIV of France (b.1638: d.1715) m. Margaret Theresa (b.1651: d.1674) (a), Maria Anna of Austria (b.1663: d.1710) (b) *1

1a) Miscarriage (c.1665)

2a) Miscarriage (c.1666)

3a) Louis de France, Dauphin of France (b.1668: d.1668)

4a) Miscarriage (c.1669)

5a) Marie Françoise de France (b.1670)

6a) Miscarriage (c.1671)

7a) Louis de France, Dauphin of France (b.1673: d.167:relievedface:

8b) Louis-Joseph de France, Dauphin of France (b.1678)

9b) Miscarriage (c.1680)

10b) Louise-Anne de France (b.1682: d.1690)

11b) Elisabeth de France (b.168:relievedface:

12b) François de France, Duc d'Anjou (b.1685)

13b) Miscarriage (c.1688)

14b) Miscarriage (c.1691)
*1

Leopold I, Holy Roman Emperor (b.1640: d.1705) m. Marguerite Louise d'Orléans (b.1645: d.1721) (a)

1a) Leopold, Archduke of Austria (b.1661: d.1662)

2a) Maria Anna of Austria, Queen of France (b.1663: d.1710) m. Louis XIV of France (b.1638: d.1715) (a)

1a) Louis-Joseph de France, Dauphin of France (b.1678)

2a) Miscarriage (c.1680)

3a) Louise-Anne de France (b.1682: d.1690)

4a) Elisabeth de France (b.168:relievedface:

5a) François de France, Duc d'Anjou (b.1685)

6a) Miscarriage (c.1688)

7a) Miscarriage (c.1691)​
3a) Charles VI, Holy Roman Emperor (b.1666) m. Violante Beatrice of Bavaria (b.1673: d.1731) (a)

1a) Margaret Anna of Austria (b.1694)

2a) Miscarriage (c.1696)

3a) Leopold, Archduke of Austria (b.1701)​
4a) Joseph, Archduke of Austria (b.1667: d.1667)

5a) Stillborn Boy (c.1669)

6a) Barbara of Austria (b.1672: d.1704) m. Victor Amadeus II of Sardinia (b.1666: 1732) (a)

1a) Miscarriage (c.1695)

2a) Miscarriage (c.1699)​
 
In terms of who marries Louis XIV, it would probably go to Margaret Theresa, her younger sibling who would have been 7 at the time of her death. Thus Louis will have to wait until 1665 before even attempting an heir. If her fertility goes as OTL Louis XIV will have to remarry, maybe to an Austrian Princess (and f Margaret Theresa is out of the picture then I can see someone like Marguerite Louise d'Orleans becoming the Holy Roman Empress.

Louis XIV of France (b.1638: d.1715) m. Margaret Theresa (b.1651: d.1674) (a), Maria Anna of Austria (b.1663: d.1710) (b) *1

1a) Miscarriage (c.1665)

2a) Miscarriage (c.1666)

3a) Louis de France, Dauphin of France (b.1668: d.1668)

4a) Miscarriage (c.1669)

5a) Marie Françoise de France (b.1670)

6a) Miscarriage (c.1671)

7a) Louis de France, Dauphin of France (b.1673: d.167:relievedface:

8b) Louis-Joseph de France, Dauphin of France (b.1678)

9b) Miscarriage (c.1680)

10b) Louise-Anne de France (b.1682: d.1690)

11b) Elisabeth de France (b.168:relievedface:

12b) François de France, Duc d'Anjou (b.1685)

13b) Miscarriage (c.1688)

14b) Miscarriage (c.1691)
*1

Leopold I, Holy Roman Emperor (b.1640: d.1705) m. Marguerite Louise d'Orléans (b.1645: d.1721) (a)

1a) Leopold, Archduke of Austria (b.1661: d.1662)

2a) Maria Anna of Austria, Queen of France (b.1663: d.1710) m. Louis XIV of France (b.1638: d.1715) (a)

1a) Louis-Joseph de France, Dauphin of France (b.1678)

2a) Miscarriage (c.1680)

3a) Louise-Anne de France (b.1682: d.1690)

4a) Elisabeth de France (b.168:relievedface:

5a) François de France, Duc d'Anjou (b.1685)

6a) Miscarriage (c.1688)

7a) Miscarriage (c.1691)​
3a) Charles VI, Holy Roman Emperor (b.1666) m. Violante Beatrice of Bavaria (b.1673: d.1731) (a)

1a) Margaret Anna of Austria (b.1694)

2a) Miscarriage (c.1696)

3a) Leopold, Archduke of Austria (b.1701)​
4a) Joseph, Archduke of Austria (b.1667: d.1667)

5a) Stillborn Boy (c.1669)

6a) Barbara of Austria (b.1672: d.1704) m. Victor Amadeus II of Sardinia (b.1666: 1732) (a)

1a) Miscarriage (c.1695)

2a) Miscarriage (c.1699)​

Uh, no. Anne of Austria's first choice was her Spanish niece. According to Antonia Fraser's Love and Louis XIV if Maria Teresa had been unavailable, then Anne would've simply pushed the suit of Minette.

So, it would be:

Louis XIV = Minette
Philippe = Margherita Violante of Savoy/Jeanne Baptiste/Elisabeth Francoise of Savoie-Nemours

Another, more outlying princess, might be Catherine of Braganza. She was offered to Louis originally, but Anne of Austria didn't approve (due to the fact that Catherine's father was in rebellion against Anne's brother) and the matter was dropped.
 
Philip IV will never consented to a match between Margarita Teresa and Louis XIV and in any case Margarita was too young and Louis was likely to marry one of his first cousins.
So if Maria Teresa was either dead or married to a surviving Ferdinand IV of Austria (Emperor Leopold I's older brother) as planned Louis will simply marry one of his other cousins:
Henriette Anne of England was surely Anne of Austria next choice but Margherita Violante of Savoy also is an option (Louis was against marrying Henriette) and the three Orleans' sisters are unlikely but not impossible (If Louis decide he want marry one of them he will)
 
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