Judicael is the Breton form of the Frankish name Berengar. He may have been Berengar, son of Berengar of Bayeaux, son of Herbert I of Vermandois. He may also have been Judicael, son of Pascwetan, son of Alan I, King of Brittany.
|Offspring of Judicael Berengar of Rennes and unknown parent|
|Conan I of Rennes (927-992)||927||27 June 992 Conquereuil|| Ermengarde of Anjou (bef967-)|
Noteworthy descendants include