François de Cossé-Brissac, 11th Duke of Brissac French writer (1868-1944) (1868–1944) Parents Roland de Cossé-Brissac Jeanne-Marie Say Children Pierre de Cossé-Brissac Françoise de Cossé-Brissac Luppé Siblings Diane of Cossé-Brissac Partners Mathilde Renée de Crussol d'Uzès