Constant wars with many of the major powers in Europe rendered a significant marriage with a foreign princess unlikely, or so Louis XIV told his brother, Monsieur, when persuading him to accept the king's legitimised daughter, Françoise Marie de Bourbon (known as Mademoiselle de Blois), as wife for Philippe.
There were contemporary rumors of an incestuous relationship between the duke and his daughter, Marie Louise Elisabeth of Berry [REF].