Kurš apprecējās ar César, Duke of Vendôme?

César de Bourbon, Légitimé de France (June 1594 – 22 October 1665) was the illegitimate 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.

Françoise of Lorraine (1 November 1592 – 8 September 1669) was a princess of Lorraine and daughter-in-law of Henry IV of France. Sometimes known as Françoise de Mercœur, she belonged to the Mercœur cadet branch of the sovereign Dukes of Lorraine and was a niece of Louise of Lorraine, wife of the previous King Henry III. Françoise was the heiress of her father and, as such, was the Duchess of Mercœur and Penthièvre suo jure.