Duke of Brissac
After the death of Louis-Hercule in 1792 without a living male-line descendant, the ducal title passed to Timoléon de Cossé-Brissac, 9th Duke of Brissac (1775-1848). He was the eldest son of Hyacinthe-Hugues de Cossé-Brissac, Duke of Cossé (1746-1813), whose father was René-Hugues de Cossé-Brissac, Count of Cossé (1702-1754). René-Hugues was the third son of Artus de Cossé-Brissac, 5th Duke of Brissac (1668-1709). After Timoléon de Cossé-Brissac died in 1848, the title of Duke of Brissac was held by his successive descendants in the male line, including François, 11th Duke of Brissac, Pierre, 12th Duke of Brissac, and François, 13th Duke of Brissac.