many of the early viscounts of Châteaudun were also counts of Perche. Geoffrey I (967–985), viscount of Châteaudun Hugh I (985–989), viscount of Châteaudun, son of the previous Hildegarde (989–1022), viscountess of Châteaudun, wife of the previous Huguh II (1022–1026), viscount of Châteaudun and archbishop of Tours, son of the previous Melisende (1026–1030), viscountess of Châteaudun, sister of the previous Geoffrey II (1030–1039), viscount of Châteaudun and count of Perche, son of the previous Hugh III (1039–1044), viscount of Châteaudun and count of Perche, son of the previous Rotrou I (1044–1080), viscount of Châteaudun and count of Perche, brother of the previous Hugues IV (1080–1110), viscount of Châteaudun, son of the previous Geoffrey III (1110–1145), viscount of Châteaudun, son of the previous Hugh V (1145–1176), viscount of Châteaudun, son of the previous Geoffrey IV (1176), viscount of Châteaudun, son of the previous Hugh VI (1176–1191), viscount of Châteaudun, brother of the previous Geoffrey V (1191–1218), viscount of Châteaudun, son of the previous Geoffrey VI (1218–1250), viscount of Châteaudun, son of the previous Clemence (1250–1259), viscountess of Châteaudun, daughter of the previous. The line of viscounts of Châteaudun ended with the rule of Clemence. Counts of Perche that were descendants of Geoffrey I of Châteaudun The lines of viscounts of Châteaudun and counts of Perche diverged in 1080 with Geoffrey II. The counts of Perche that were from the House of Châteaudun were: Geoffrey II (1080–1100), count of Perche and Mortagne, son of Rotrou I of Châteaudun Rotrou III (1100–1144), count of Perche and Mortagne, son of the previous Rotrou IV (1144–1191), count of Perche, son of the previous Geoffrey III (1191–1202), count of Perche, son of the previous Thomas (1202–1217), count of Perche, son of the previous William II (1217–1226), count of Perche, also bishop of Châlons, brother of Geoffrey III Counts of Anjou that were descendants of Geoffrey I of Châteaudun As noted above, the viscounts of Châteaudun were closely related to the counts of Anjou. The direct descendants of the founder of the House of Châteaudun include: Hugh, son of Melisende, Viscountess of Châteaudun, and Fulcois, Count of Montagne Geoffrey II of Gâtinais, son of the previous Geoffrey III of Anjou, son of the previous Fulk IV of Anjou, brother of the previous Fulk V of Anjou, son of the previous. The line of viscounts of Châteaudun became extinct in 1249, with the death Geoffrey VI of Châteaudun.