| Earl of Hereford Richard FitzGilbert De Clare | |
| B: | 1100 |
| D: | 15 Apr 1136 |
1171-1233
| Matilda De Machines | |
| B: | 1171 |
| D: | 6 Jan 1233 |
1144-1219
| Earl of Huntingdon David Canmore | |
| B: | 1144 |
| Huntingdon, Huntingdonshire, England, United Kingdom | |
| M: | 26 Aug 1190 |
| D: | 17 Jun 1219 |
| Jedburgh, , Roxburgh, Scotland, United Kingdom | |
1174-1247
| Anges De Machines | |
| B: | 1174 |
| Tutbury, Staffordshire, England, United Kingdom | |
| D: | 2 Nov 1247 |
1162-1247
| Earl of Derby William Ferrers | |
| B: | 1162 |
| Ferrers, Derbyshire, England, United Kingdom | |
| M: | 1192 |
| , Cheshire, England, United Kingdom | |
| D: | 22 Sep 1247 |
1147-1181
| Earl of Chester Hugh De Machines | |
| B: | 1147 |
| Keveliock, Monmouth, Monmouth, Wales, United Kingdom | |
| D: | 30 Jun 1181 |
| Leeke, Staffordshire, England, United Kingdom | |
1155-1227
| Bertrade D'evreux | |
| B: | 1155 |
| Normandy, France | |
| M: | 1169 |
| Montfort, Normandy, France | |
| D: | 1227 |
| Earl of Chester Ranulph Gernons De Machines | |
| B: | 1116 |
| Gernon Castle, Normandy, France | |
| D: | 16 Dec 1153 |
1130-1180
| Maud FitzRobert De Caen | |
| B: | 1130 |
| , Gloucesterhire, England, United Kingdon | |
| D: | 29 Jul 1180 |
1070-1128
| Ranulf De Machines | |
| B: | 1070 |
| , Cheshire, England, United Kingdom | |
| D: | Jan 1128 |
| , Cheshire, England, United Kingdom | |
1052-1084
| Maud D'Avranches | |
| B: | 1052 |
| Avranches, , Basse-Normandie, France | |
| D: | 1084 |
1050-Yes, date unknown
| Ranulf De Machines | |
| B: | 1050 |
| Normandy, France | |
| D: | Yes, date unknown |
1202-1294
| Lucy De Tregoz | |
| B: | 1202 |
| Knockyn, Warwickshire, England, United Kingdom | |
| D: | 1294 |
1196-1269
| Lord of Knockyn John Le Strange, III | |
| B: | 1196 |
| Knockyn, Warwickshire, England, United Kingdom | |
| D: | 1269 |
1170-1236
| Sybilla, of Ewyas | |
| B: | 1170 |
| Ewyas Harold, Herefordshire, England, United Kingdom | |
| D: | 1 Jul 1236 |
1145-1215
| Sheriff Of Wiltshire Robert De Tregoz | |
| B: | 1145 |
| Salisbury, Wiltshire, England, United Kingdom | |
| M: | 1198 |
| D: | 29 Apr 1215 |
| Ewyas Harold, Herefordshire, England, United Kingdom | |
1125-1198
| Baron of Ewyas Robert, II | |
| B: | 1125 |
| Hereford, Herefordshire, England, United Kingdom | |
| D: | 1198 |
1140-1204
| Pernel, of Scudamore | |
| B: | 1140 |
| Hereford, Herefordshire, England, United Kingdom | |
| D: | 1204 |
1085-Yes, date unknown
| Baron of Ewyas Robert | |
| B: | 1085 |
| D: | Yes, date unknown |
1095-Yes, date unknown
| Sibyl, Wife, of Ewyas | |
| B: | 1095 |
| D: | Yes, date unknown |
1051-Yes, date unknown
| Lord of Ewyas Harold Sudeley | |
| B: | 1051 |
| D: | Yes, date unknown |
1025-1082
| Vicount Richard D'Avranches | |
| B: | 1025 |
| D: | 1082 |
1031-Yes, date unknown
| Emma De Conteville | |
| B: | 1031 |
| Conteville, France | |
| D: | Yes, date unknown |
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 |
909-Yes, date unknown
| Hrolf Thurston Hrollagersson, of Heismer | |
| B: | 909 |
| D: | Yes, date unknown |
913-Yes, date unknown
| Gerlotte, of Chartres | |
| B: | 913 |
| D: | Yes, date unknown |
854-Yes, date unknown
| Hrollager Ragvaldsson, of Heismer | |
| B: | 854 |
| D: | Yes, date unknown |
879-Yes, date unknown
| Emina, Wife, of Heismer | |
| B: | 879 |
| D: | Yes, date unknown |
835-Yes, date unknown
| Ermina, Wife, of Maerr | |
| B: | 835 |
| D: | Yes, date unknown |
| Jarl of Maerr Ragnwald Eysteinsson | |
| B: | 830 |
| Maer, More Og Romsdal, Norway | |
| M: | 854 |
| D: | 894 |
| , , Orkney, Orkney Islands, Scotland, United Kingdom | |