Count Gurwant of Rennes
Gurwant was born in 0840.  He died  due to exhaustion on the battlefield at the age of 37 in 0877.

 Princess of Brittany
of Brittany was born in 0840.

 Count Berenger of Rennes
Berenger was born in 0870.  He died at the age of 60 in 0930.

 Oreguen de Rennes