
| Earl William (Guillaume) de Breteuil, , Seigneur Breteui & Ivry | |
| B: | Abt 1050 |
| Breseuil, Eure, Normandy, France | |
| D: | 12 Jan 1102 |
| Guillaume (William) de Breteuil, seigneur de Bréteuïl | |
| B: | 1050 |
| Breteuil, Oise, Picardie, France | |
| D: | 14 Mar 1104 |
| Le Bec-Hellouin, Eure, Upper Normandy, France | |
| Hawise de Beaumont | |
| B: | Abt 1116 |
| Bristol, England, United Kingdom | |
| D: | 9 Dec 1208 |
| Dudley, Worcestershire, England, United Kingdom | |
| Sir William "Mafonache" FitzRobert, 2nd Earl of Gloucester | |
| B: | 23 Nov 1112 |
| Tewkesbury, Gloucestershire, England | |
| M: | 1150 |
| Leicester, Leicestershire, England | |
| D: | 23 Nov 1183 |
| Cardiff, Glamorgan, Wales | |
| Isabelle (Elizabeth) De Beaumont | |
| B: | 1120 |
| Leicestershire, England, United Kingdom | |
| D: | May 1188 |
| Carmarthen, Carmarthenshire, Wales, United Kingdom | |
| Eleanor De Beaumont | |
| B: | 1121 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | 1185 |
| England, United Kingdom | |
| Lord Robert "Blanchmains" de Beaumont, 3rd Earl of Leicester | |
| B: | 1121 |
| Beaumont-du-Périgord, Dordogne, Nouvelle-Aquitaine, France | |
| D: | 31 Aug 1190 |
| Albania | |
| Isabelle de Beaumont | |
| B: | 1122 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | Aft May 1188 |
| Leicestershire, England, United Kingdom | |
| Henry De Beaumont | |
| B: | 1124 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | DECEASED |
| Lady Margaret De Beaumont | |
| B: | 1125 |
| Leicester, Leicestershire, England | |
| D: | Aft 1185 |
| Leicester, Leicestershire, England | |
| Sir Ralph de Toeni, V | |
| B: | 1130 |
| Conches-en-Ouche, Eure, Upper Normandy, France | |
| M: | Aft 1154 |
| Leicester, Leicestershire, England | |
| D: | 1162 |
| Flamstead, Hertfordshire, England | |
| Amice De Beaumont | |
| B: | 1128 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | 3 Sep 1215 |
| Hertfordshire, England, United Kingdom | |
| Roger de Beaumont | |
| B: | 1128 |
| Leicestershire, England, United Kingdom | |
| D: | Bef 1228 |
| Hawise ( Beaumont) De Bellomont | |
| B: | 1129 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | 24 Apr 1197 |
| Tewkesbury, Gloucestershire, England | |
| Sir William "Mafonache" FitzRobert, 2nd Earl of Gloucester | |
| B: | 23 Nov 1112 |
| Tewkesbury, Gloucestershire, England | |
| M: | 1150 |
| D: | 23 Nov 1183 |
| Cardiff, Glamorgan, Wales | |
| Emma Beaumont | |
| B: | 1129 |
| Leicestershire, England, United Kingdom | |
| D: | 24 Apr 1197 |
| Leicester, Leicestershire, England | |
| Adela Belvoir DeBeaumont | |
| B: | 1129 |
| Leicester Castle, Leicestershire, England | |
| D: | DECEASED |
| Leicester Beaumont | |
| B: | 1134 |
| United Kingdom | |
| D: | 1197 |
| United Kingdom | |
| Robert de Beaumont, 3rd Earl of Leicester | |
| B: | 1135 |
| Leicester, Leicestershire, England | |
| D: | 31 Aug 1190 |
| Durrës, Durrës, Albania | |
| Ermigie Amelie DeBeaumont | |
| B: | 1139 |
| D: | DECEASED |
| Lady Elizabeth de Beaumont | |
| B: | 1140 |
| Leicestershire, England, United Kingdom | |
| D: | 24 Apr 1197 |
| Dursley, Gloucestershire, England | |
| Earl Robert Fitz-Parnell Harcourt | |
| B: | 1156 |
| Bramber Castle, Sussex, England | |
| D: | 20 Oct 1205 |
| Leicester, Leicestershire, England | |
| Isabel | |
| D: | DECEASED |
| Countess Leice Amice Uta Waiet, of Leicester | |
| B: | 1094 |
| Norfolk, England | |
| D: | 5 Apr 1168 |
| Nuneaton, Warwickshire, England | |
| Sir Robert De Beaumont, 2nd Earl of Leicester | |
| B: | 24 Nov 1104 |
| Leicester, Leicestershire, England | |
| M: | 1120 |
| D: | 5 Apr 1168 |
| Leicester Abbey, Leicestershire, England | |
| Emma Fitz Osborne | |
| B: | 1051 |
| Breteuil-sur-Iton, Eure, Upper Normandy, France | |
| D: | 1096 |
| Normandy, France | |
| Earl Raoul de Gael, II of Suffolk | |
| B: | 1042 |
| Hereford, Herefordshire, England, United Kingdom | |
| M: | 1075 |
| Exning, Cambridgeshire, England | |
| D: | 1096 |
| Montfort-sur-Risle, Eure, Upper Normandy, France | |
| William Fitzwilliam [, Seigneur Breteuil] | |
| B: | Abt 1052 |
| Of, Breteuil, Normandy, France | |
| D: | DECEASED |
| Roger de Breteuil, Earl Of Hereford | |
| B: | 1055 |
| Breteuil-sur-Iton, Eure, Upper Normandy, France | |
| D: | 1087 |
| England, United Kingdom | |
| Avise Emma Fitz Osborne | |
| B: | 1055 |
| Norfolk, England, United Kingdom | |
| D: | 1096 |
| Monk Ralph Fitz-William | |
| B: | 1058 |
| Hertfordshire, England, United Kingdom | |
| D: | 1157 |
| Ralph FitzOsbourne, , Monk | |
| B: | 1058 |
| D: | DECEASED |
| Countess Leice Amice Uta Waiet, of Leicester | |
| B: | 1094 |
| Norfolk, England | |
| D: | 5 Apr 1168 |
| Nuneaton, Warwickshire, England | |
| Sir Robert De Beaumont, 2nd Earl of Leicester | |
| B: | 24 Nov 1104 |
| Leicester, Leicestershire, England | |
| M: | 1120 |
| D: | 5 Apr 1168 |
| Leicester Abbey, Leicestershire, England | |
| Amice De ( Uta) Gael ( Waiet), Countess Of Leicf | |
| B: | 1094 |
| Norfolk, England | |
| D: | 31 Aug 1168 |
| Convent of Nuneaton or Lyre Monastery, England | |
| Elisabeth de Gael Montfort | |
| B: | Bef 1100 |
| D: | Aft 1121 |
| Countess Itta de Montford | |
| B: | 1108 |
| Gaël, Ille-et-Vilaine, Brittany, France | |
| D: | 31 Aug 1168 |
| Leicestershire, England, United Kingdom | |
| Amice De (Uta) Countess Of Leicf De GAEL (WAIET) | |
| B: | Abt 1108 |
| Norfolk, England, United Kingdom | |
| D: | DECEASED |
| Earl Robert Bossu de Beaumont, 2nd Earl Leicester | |
| B: | 24 Nov 1104 |
| Leicester, Leicestershire, England, United Kingdom | |
| D: | 5 Apr 1168 |
| Leicester Abbey, Leicestershire, England | |
| Olivier Ier de Montfort le Hédé | |
| B: | 1110 |
| Konstanz, Baden, Germany | |
| D: | Abt 1178 |
| of, Bretagne, France | |
| Robert DeMontfort LeHede | |
| B: | 1110 |
| D: | 1178 |
| Assalite de Montauban | |
| B: | 1110 |
| D: | DECEASED |
| Agnès Elizabeth de Montfort, dame de Gournay | |
| B: | 23 Nov 1122 |
| Montfort-sur-Risle, Eure, Upper Normandy, France | |
| D: | 15 Dec 1181 |
| Gournay, Seine-et-Oise, Île-de-France, France | |
| Henry De MONTFORT | |
| D: | Aft 1135 |
| France | |
| guillaume 1er DE MONTFORT LE HEDE | |
| B: | Gaël, Ille-et-Vilaine, Brittany, France |
| D: | 11 May 1157 |
| France | |
| Ralph De Montfort, II | |
| B: | 1078 |
| Montfort-sur-Risle, Eure, Upper Normandy, France | |
| D: | 1143 |
| Gaël, Ille-et-Vilaine, Brittany, France | |
| Emma De Vermandois | |
| B: | Vermandois, France |
| M: | 1100 |
| D: | 13 Feb 1131 |
| Sens, Saône-et-Loire, Bourgogne-Franche-Comté, France | |
| Emma FitzOsborne | |
| B: | Abt 1059 |
| Normandy, France | |
| D: | Aft 1095 |
| Ralph de Guader (de Gael), 1st Earl of Norfolk | |
| B: | 1039 |
| Gaël, Ille-et-Vilaine, Brittany, France | |
| D: | 1096 |
| Ralph FitzWilliam, Monk | |
| B: | 1059 |
| Herefordshire, England | |
| D: | 1095 |
| John FitzWilliam De Breteuil | |
| B: | 1060 |
| Breteuil-sur-Iton, Eure, Upper Normandy, France | |
| D: | Bef 20 Feb 1070/1071 |
| Breteuil, Normandy, France | |
| Richard Fitz-William | |
| B: | 1062 |
| Bretagne, Charente-Maritime, Poitou-Charentes, France | |
| D: | 20 Feb 1070 |
| Breteuil-sur-Iton, Eure, Upper Normandy, France | |
| Richard De Breteuil | |
| B: | 1062 |
| D: | DECEASED |
| Richard FitzWilliam | |
| B: | 1062 |
| Breteuil, Normandy, France or Herefordshire, England | |
| D: | DECEASED |
| Hadewisa FitzOsbourne | |
| B: | Abt 1070 |
| D: | DECEASED |
| Sir William de Breteuil fitzOsbern, 1st Earl of Hereford | |
| B: | Abt 1020 |
| London, Middlesex, England | |
| D: | 20 Feb 1071 |
| Cassel, Nord, Nord-Pas-de-Calais, France | |
| Adeliza de Toeni, Countess of Hereford | |
| B: | 1035 |
| Tosny, Eure, Upper Normandy, France | |
| M: | 1050 |
| Flanders, Nord, France | |
| D: | 5 Oct 1070 |
| Alance, Manche, Normandy, France | |