CÉSAR DE BOURBON, DUKE OF VENDÔME (1594-1665) Letter signed to the Duke of Bouillon, Henri de La Tour d’Auvergne.
Paris, 14 July 1617. 1 p. in-folio, address on the back. Concerning a dispute with the Baron d’Oyen, who found the troops and subsidies that the Duke of Vendôme had promised him for his aid to the rebellious princes not strong enough. The Duke of Vendôme asks the Duke of Bouillon to intercede before having to submit to the uncertainty of an arbitration to be rendered by Prince Maurice of Nassau. The illegitimate son of Henri IV and Gabrielle d’Estrées, César de Bourbon Vendôme, after the death of his father, became involved in aristocratic plots and then had to go into exile while Richelieu was alive. During the Fronde, he rallied to the royal power that he then served militarily, notably in Spain in 1665.