César de Bourbon (Duke of Vendôme 1598 – 1665)

César de Bourbon, Légitimé de France (June 1594 – October 1665) was the son of Henry IV of France and his mistress Gabrielle d’Estrées, and founder of the House of Bourbon-Vendome. He held the titles of 1st Duke of Vendôme, 2nd Duke of Beaufort and 2nd Duke of Étampes, but is also simply known as César de Vendôme. Through his daughter, Élisabeth de Bourbon, César was a great-great-great-grandfather of Louis XV of France, merging thereafter to the French royal line. César de Bourbon is also an ancestor of Juan Carlos I of Spain, of Albert II, King of the Belgians, of Henri, Grand Duke of Luxembourg, and of Vittorio Emanuele, Prince of Naples, a pretender to the Italian throne.

• Friday 16 September 1644

• Wikipedia article on César, Duke of Vendôme

• Wikipedia for text, wikigallery for image.