CONAN de Rennes, son of JUDICAËL [Juhael] Comte de Rennes & his wife Gerberge --- (-killed in battle Conquereil 27 Jun 992). The Chronicle of Nantes names "Conano filio Judicael Berengarii Redonensi comite" when recording that he held a large part of Brittany from Thibaut [II] Comte de Blois and fought with Hoël Comte de Nantes[120]. His parentage is confirmed by the Chronico Sancti Michaelis which records the death of his grandson "Gaufridus Dux Britanniæ filius Conani filii Juhelli Berengarii" in 1008[121]. Comte de Rennes. He succeeded in [970] as CONAN I "le Tort" Duke of Brittany. Rodulfus Glaber records that Conan "crowned himself with a royal diadem", was defeated by his brother-in-law Foulques Comte d'Anjou, and surrendered after his right hand had been cut off[122]. The Chronico Sancti Michaelis records that "Conanus Brito…filius Juhelli Berengarii" was killed in battle "V Kal Jul 992" against Foulques Comte d'Anjou[123]. The Chronicle of Nantes reports that he was killed at the battle of Conquereuil[124], dated "992 V Kal Jul" in the Chronicon britannicum[125]. The Chronicon Kemperlegiense records the death "in bello Conçurruç…V Kal Jul" of "Conanus comes, filius Iudicaëlis Berengarii Comitis Redonensis"[126].
m (973) ERMENGARDE d'Anjou, daughter of GEOFFROY I "Grisegonelle" Comte d'Anjou & his first wife Adela de Meaux [Vermandois-Carolingian] (before 965-after 982). Rodulfus Glaber records that Conan married the sister of Foulques of Anjou but does not name her[127]. The primary source which confirms her name has not yet been identified.
Mistresses (1) - (x): ---. The names of Duke Conan's mistresses are not known.
Duke Conan I & his wife had five children