| Robert de Beaumont
* ~1045 † 1118 | ||
| ∞ 1096 | ||
Isabelle de Vermandois
![[mer]](up.png)
* 1085 † 1131 | ||
| Emma de Beaumont
* 1102 | ||
| Waleran IV de Beaumont
* 1104 † 1166 | ||
| ∞ 1136 | ||
| Mathilde de Blois
† ~1140 | ||
| ∞ 1141 | ||
| Agnès de Montfort
* ~1123 † 1181 | ||
| Robert de Beaumont
* 1104 † 1168 | ||
| ∞ | ||
| Amice de Gael | ||
| Hawise de Beaumont | ||
| ∞ | ||
| William FitzRobert | ||
| Robert de Beaumont
† 1190 | ||
| ∞ | ||
| Pétronille de Grandmesnil
| ||
| Robert de Beaumont
† 1204 | ||
| Roger de Beaumont | ||
| William de Beaumont | ||
| Amicia de Beaumont | ||
| ∞ | 
| |
| Simon IV de Montfort
† 1188 | ||
| Simon V de Montfort
* ~1170 † 1218 | ||
|
| ∞ ~1190 | |
| Alix de Montmorency
† 1221 | ||
| Amaury VI de Montfort
* ~1195 † 1241 | ||
|
| ||
| Simon de Montfort
* 1208 † 1265-08-04 | ||
|
| >> | |
| Guy de Montfort
† 1220 | ||
|
| >> | |
| Robert de Montfort | ||
|
| ||
| Pernelle de Montfort | ||
|
| ||
| Amicie de Montfort
† 1253 | ||
|
| >> | |
| Laure de Montfort | ||
|
| ||
| Guy de Montfort
† 1228 | ||
|
| ∞ | 
|
| Helvis d'Ibelin
† 1216 | ||
| Margaret de Beaumont | ||
| ∞ | ||
| Saer de Quincy | ||
| Isabel de Beaumont | ||
| ∞ | ||
| Simon II de Senlis | ||
| ∞ | ||
| Gervase Paynel of Dudley | ||
| Margaret de Beaumont | ||
| ∞ | ||
| Raoul IV de Tosny
† 1162 | ||
| Hugh de Beaumont
* ~1106 | ||
| Adeline de Beaumont | ||
| ∞ | ||
| Hugues IV de Montfort-sur-Risle | ||
| ∞ | ||
| Richard de Granville
† 1147 | ||
| Aubree de Beaumont | ||
| ∞ | ||
| Hugues II de Châteauneuf-en-Thymerais | ||
| Maud de Beaumont | ||
| ∞ | ||
| William Lovel
* ~1102 | ||
| Isabel de Beaumont
† 1172 | ||
| & | ||
| Henry I of England
* ~1068 † 1135 | ||
| Isabel Hedwig of England
* ~1125 | ||
| Matilda FitzRoy
* ~1125 | ||
| ∞ ~1130 | ||
| Gilbert de Clare
* ~1100 † 1148 | ||
| Richard de Clare
* 1130 † 1176 | ||
| ∞ | ||
| Aoife of Leinster | ||
| Gilbert de Clare
† 1185 | ||
| Isabel de Clare
* 1172 † 1220 | ||
| & | ||
| William Marshal
* 1147 † 1219 | ||
| William Marshal
* 1190 † 1231 | ||
| ∞ | ||
| Alice de Béthune | ||
| ∞ 1224 | 
| |
| Eleanor Plantagenet
* 1215 † 1275 | ||
| Richard Marshal
* 1191 † 1234 | ||
| ∞ | ||
| Gervase le Dinant | ||
| Matilda Marshal
* 1194 † 1248 | ||
| ∞ | ||
| Hugh Bigod
| ||
| ∞ | ||
| Walter de Dunstanville | ||
| ∞ 1225 | ||
| William de Warenne
* 1166 † 1240 | ||
| Isabel de Warenne
* ~1228 † 1282 | ||
| John de Warenne
* 1231 † 1304 | ||
| >> | ||
| Gilbert Marshal
* 1197 † 1241 | ||
| ∞ | 
| |
| Marjorie of Scotland
* 1200 † 1244 | ||
| Walter Marshal
* ~1199 † 1245 | ||
| ∞ 1242 | ||
| Margaret de Quincy
* ~1206 † 1266 | ||
| Isabel Marshal
* 1200 † 1240 | ||
| ∞ ~1217 | ||
| Gilbert de Clare
* 1180 † 1230 | ||
| Agnes de Clare
* 1218 | ||
| Amice de Clare
* 1220 † 1287 | ||
| Richard de Clare
* 1222 † 1262 | ||
| >> | ||
| Isabel de Clare
* 1226 † >1264 | ||
| >> | ||
| William de Clare
* 1228 † 1258 | ||
| Gilbert de Clare
* 1229 | ||
| ∞ 1231 |
| |
| Richard Plantagenet
* 1209 † 1272 | ||
| John of Cornwall
* 1232 † 1233 | ||
| Isabella of Cornwall
* 1233 † 1234 | ||
| Henry of Almain
* 1235 † 1271 | ||
| Nicholas of Cornwall
* 1240 † 1240 | ||
| Sibyl Marshal
* ~1201 † 1245 | ||
| ∞ | ||
| William de Ferrers
| ||
| Eva Marshal
* 1203 † 1246 | ||
| ∞ | ||
| William de Braose | ||
| Anselm Marshal
* ~1208 † 1245 | ||
| ∞ | ||
| Maud de Bohun
| ||
| Joan Marshal
* 1210 † 1234 | ||
| ∞ | ||
| Warin de Munchensi
† 1255 | ||
| Baldwin de Clare | ||
| Agnes de Clare | ||
| Basilia de Clare | ||
| ∞ >1148 | ||
| Hervé de Montmorency
| ||