Hoel V of Cornouaille
Hoel V of was born after 1010.  He died on April 13th, 1084.

 Hawise of Brittany
Hawise of was born about 1034.  She died in 1072.

 Alan IV Strongbeard Fergent of Brittany
Alan IV Strongbeard Fergent of was born in Bretagne, Normandy, France.  He died on October 13th, 1119.