There have been topics discussing alternate children for the Catholic Monarchs as well as Louis XIII (with all of Anne of Austria's stillbirths/miscarriages being carried to term) so I figured why not do a similar topic on the children of Louis XV. This French King was quite unlucky with his Polish Queen. They had a total of 10 children, but only two sons (one of which died young). The other eight were daughters. Only one of his daughters married, to the Infante Philip, later Duke of Parma. Two of the daughters died young, but the others never married, and one even became a nun. It was suggested that they never married because of the awkward period in which they were born left a lack of suitable princes to marry them, and thus remaining unmarried and at Versailles was considered much more suitable. So instead, let's give Louis XV his many sons in lieu of his daughters. To matters simple, we'll give these children the life spans of their OTL counter-parts.
- Louis (OTL
Louise Elisabeth), the Dauphin: 1727-1759
- Philippe (OTL
Henriette, twin of Louise), the Duke of Anjou: 1727-1752
- Charles (OTL
Louise, died young), the Duke of Burgundy: 1728-1733
- Louise (OTL
Louis, the Dauphin): 1729-1765
- Marie Thérèse (OTL
Philippe, Duc d'Anjou, died young): 1730-1733
- Charles Stanislaus (OTL
Marie Adelaide), the Duke of Burgundy: 1732-1800
- Louis Joseph (OTL
Victoire), the Duke of Aquitaine: 1733-1799
- Charles Philippe (OTL
Sophie), the Duke of Berri: 1734-1782
- Stillborn Child: 1735
- Philippe François (OTL,
Thérèse), the Duke of Alençon: 1736-1744
- Louis Auguste (OTL
Louise-Marie), the Duke of Alençon: 1737-1787
Names just based on what was popular within the royal family at that time, going back to Louis XIV's time. With more sons, one would certainly bare the name of his Polish grandfather. I'm fairly certain all these sons would be granted appanages, I just used what was considered at the time" Louis XV's historical second son was granted Anjou, and I went from there, as one of his grandsons was granted Burgundy and another Aquitaine, before Louis XVIII and Charles X were granted counties: I'm unsure why Louis XVIII was granted Provence, but Charles X was specifically granted Artois because he was born shortly after Robert Damiens attempted to assassinate the king, and was from that province. The grant of Artois to his grandson was to show the people of that province that he still loved them. Without anything to rock the boat, all these sons are certainly made Dukes.
Louis XV would still be deprived of his eldest son before his own death, so would probably still be succeeded by a grandson. It's possible though, that the Dauphin fails to have heirs and so Louis XV would instead be succeeded by the Duke of Anjou. As for his lone surviving daughter in this scenario, she will probably marry a Spanish Prince, likely the Infante Philip, as the earliest marriages of Louis XV's children were to patch up things with the Spanish branch. In this case, the Dauphin probably still has a Spanish wife, who may or may not survive, or he could die without heirs. As for the other sons, it'd be interesting to see who they might marry. Like the ill-fated princesses, might some of them not marry out of lack of suitable princesses at the time? The Austrians are not yet allies, so these princes won't benefit from the diplomatic revolution that saw Louis XV betroth his grandson to an Austrian Archduchess. As long as there are suitable princesses in the places that the French royal family married into (Bavaria and Savoy come to mind), the six surviving sons might see themselves wed. I know there were a couple Savoyard Princesses much like their French counterparts that were abandoned because of lack of suitable princes to marry. It seems especially in the period of 1730-1740, there were many princesses born into European royal families, but not enough princes to counterbalance it.