Father: Count Odo of Penthievre Born: 999 Married: Unknown Died: 1079
Mother: Princess Agnes of Cornwall Born: 1032 Died: 1101
Children: 1. Count Geoffroi I of Penthievre (b.1053) 2. Count Etienne I of Penthievre (b.1056) 3. Earl Alain of Richmond (b.1058) 4. Earl Briand of Richmond (b.1060)