Bernard IV of Comminges

Bernard IV (died 22 February 1225) succeeded his father Bernard III Dodon as count of Comminges in 1176, sharing the family lands with his brother Roger, who received the viscounty of Couserans. From 1180 to 1195 he occupied Saint-Lizier and expelled successive bishops until the pope intervened.

He later joined Count Raymond VI of Toulouse against Simon de Montfort in the Albigensian Crusade. Montfort occupied Comminges in 1212, but the Fourth Lateran Council restored the county to him in 1216, on condition that his daughter Pétronille marry Guy de Montfort; he made peace in 1220.