Conan I of Rennes (927 - June 27 992), was count of Rennes and duke of Brittany, from 990 to his death. He became ruler of Brittany after a period of civil and political unrest, through his father, Judicael Berenguer, count of Rennes and great-grandson of Duke of Brittany . He married Ermengarde of Anjou and had the following issue:
Conan died in battle and is buried in Mont St Michel Abbey.
See also: Dukes of Brittany family tree
