1000-1041
| Viscount of Hiesmer Thurston | |
| B: | 1000 |
| D: | 1041 |
1004-Yes, date unknown
| Judith De Monterolier | |
| B: | 1004 |
| Normandy, France | |
| D: | Yes, date unknown |
970-1035
| Count of Hiesmer Ansfried | |
| B: | 970 |
| D: | 1035 |
935-978
| Count of Heismer Ansfried | |
| B: | 935 |
| Thillieres, Normandy, France | |
| D: | 978 |
940-Yes, date unknown
| Helloe De Beulac | |
| B: | 940 |
| D: | Yes, date unknown |
|
913-Yes, date unknown
| Gerlotte, of Chartres | |
| B: | 913 |
| D: | Yes, date unknown |
909-Yes, date unknown
| Hrolf Thurston Hrollagersson, of Heismer | |
| B: | 909 |
| D: | Yes, date unknown |