I think I will start a Timeline with this POD. The current title I would give it would be "A Happier Wedding, A Greater France".
I re-read the summary I had made and I'm checking the informations I wrote about so that the Timeline won't have errors. I discovered a few problem regarding TTL Louis XIV's potential brides.
A Polish marriage might not be a good idea in the end : Anne Catherine Constance was a daughter of Sigismund III Vasa, King of Poland. However, the French were allies of the Swedes during the Thirty Years War and Sigismund III was claiming the Swedish Crown. If TTL Louis XIV were to wed a Polish princess, it would be negative for the Franco-Swedish alliance and I don't Louis XIII or Cardinal Richelieu would make that mistake.
This leaves Anne of Lorraine. However, the daughter of Duke Charles IV of Lorraine wasn't born before 1639 : TTL Louis XIV, being born in 1619, is 20 years older. The age gap seems huge and this would push the wedding sometime around 1655 : not sure the French King could wait that long. Of course, TTL Louis XIV could have a first wife then remarry to Anne de Lorraine. But who could be his first wife in those conditions?
I would also like to confirm the scenario I have for the Two daughters of Louis XIII and Anne of Austria in my timeline.
Let's start with Marie de France, the eldest : She will marry Philip William of Pfalz-Neuburg. Technically she would be 20 in 1642 when Philip William married Anne Catherine Constance OTL : Marie has the advantage of being more prestigious and younger, so she could be a better bride. She could also become Philip William's second wife, but she would be 30 in 1652 and OTL Philip William's second wife was Charlotte of Hesse-Darmstadt, who was 17 when he married her. Plus Charlotte of Hesse was very pretty and it was a very happy marriage by all account : seems to me like a better idea of having Philip William married to Marie sometime between 1636 and 1642.
As for Elisabeth de France, I think I will marry her to William II of Orange. William II wedded Mary of England in 1641, when he was 15 and his bride was only 10. At the same time, Elisabeth would be 15 : she could make a better bride. Problem I see is that Elisabeth would likely be a Catholic, unlike Mary who is a Protestant. However, I think she would be a better choice, since France appeared more powerful than England.
Mary of England would be wedded to Charles Louis of the Palatinate, as we talked about : OTL, he wasn't wedded before 1649 (being 32) and young mary was 18. I think the fact she is an English princess and is younger than Charlotte of Hesse-Cassel (OTL first wife of Charles Louis) would play in her favor. Are those scenario logical?
Regarding the other children of Louis XIII and Anne of Austria, here is what I've decided :
-Philippe will be wedded to Louise-Christine of Savoy (1629-1692), eldest daughter of Victor Amadeus I of Savoy. OTL, she was wedded in 1642 to her cousin Maurice of Savoy, but he died the same year : she didn't have any children and never remarried following this. I think it would be quite prestigious for Savoy to have marry the second son of the French King, who is also her 1st Cousin (Louis XIII being the brother of Christine, Victor Amadeus' wife).
-Henri will wed Maria Theresa of Spain. It will be linked to his brother's Spanish policies, as well as to a peace deal between France and Spain.
-Charles will wed Henriette Anne of England, as an effort to keep a good relationship between France and England.
Regarding the policies of TTL Louis XIV, it will be a mix between a continuation of those of his father and moderated policies of his OTL counterpart : he will be no Sun King, but will still be regarded as a Great King and will expand's France's borders and influence.
Thoughts?