I'm not a Payseur devotee, but I wanted to point out something I noticed the other day. I found it interesting in light of the whole Payseur and bloodlines thing nobody can explain in under 30 chapters.
Louis the XIV's son Louis the Grand Dauphin died before his father so never became King of France. Louis the Grand Dauphin's grandson became the next King of France, Louis XV.
Louis XIV was the Sun King and was the focus of the recent TV series Versailles.
https://en.wikipedia.org/wiki/Versailles_(TV_series)
https://en.wikipedia.org/wiki/Louis_XIV_of_France
https://en.wikipedia.org/wiki/Louis,_Grand_Dauphin
Louis the XIV, or Louis de Bourbon, married Maria Theresa of Spain who was of course a Hapsburg.
Louis the XIV was the head of the House of Bourbon.
Maria Theresa had pretty good claims to the crows of both the Hapsburg Spanish Empire and the Hapsburg Austrian Empire.
The married couple were cousins.
https://en.wikipedia.org/wiki/Maria_Theresa_of_Spain
"Maria Theresa of Spain, was by birth Infanta of Spain and Portugal and Archduchess of Austria as member of the Spanish branch of the House of Habsburg and by marriage Queen of France. Her marriage in 1660 to King Louis XIV, her cousin, was made with the purpose of ending the lengthy war between France and Spain."
That's all stuff most people know. But did you realize there's a living man today with almost the same heritage?
Louis Alphone Duke of Anjou, or if you like, Louis XX
https://en.wikipedia.org/wiki/Louis_Alphonse,_Duke_of_Anjou
"Louis Alphonse of Bourbon (Spanish: Luis Alfonso Gonzalo Víctor Manuel Marco de Borbón y Martínez-Bordiú, French: Louis Alphonse Gonzalve Victor Emmanuel Marc de Bourbon; born 25 April 1974, in Madrid) is a member of the Royal House of Bourbon, and Legitimist pretender to the defunct French throne as Louis XX.
As the senior male heir of Hugh Capet by traditional male-line primogeniture, he is often recognised as the "Head of the House of Bourbon", and by Legitimist royalists as the rightful claimant to the French crown, being the senior agnatic descendant of King Louis XIV of France (ruled 1643–1715) through his grandson King Philip V of Spain.
Louis Alphonse is patrilineally the senior great-grandson of King Alfonso XIII of Spain. However, his grandfather Infante Jaime, Duke of Segovia, renounced his rights to the Spanish throne for himself and his descendants owing to his deafness (a renunciation disputed by legitimists). The crown of Spain has descended to his second cousin, King Felipe VI of Spain. Through his mother, he is also a great-grandson of Spain's caudillo (dictator), General Francisco Franco and through his father, a great-great-great-grandson of Queen Victoria of the United Kingdom."