1st Earl of Leicester and Count of Meulan Robert De Beaumont
1049 - 1118 (69 years)(Notes: You may have to scroll down or right to see chart.)
| Isabel De Clare | |
| B: | 1172 |
| Ireland | |
| D: | 1220 |
| William Marshal | |
| B: | 1146 |
| D: | 14 May 1219 |
| Gilbert De Clare | |
| D: | 1185 |
| Richard De Clare | |
| B: | 1130 |
| D: | 20 Apr 1176 |
| Isabel De Beaumont | |
| B: | 1102 |
| D: | 1172 |
| Gilbert De Clare | |
| B: | 1100 |
| D: | 6 Jan 1147 |
| Emma De Beaumont | |
| B: | 1102 |
| Waleran De Beaumont, IV | |
| B: | 1104 |
| Hugh De Beaumont | |
| B: | 1106 |
| Robert De Beaumont | |
| B: | 1105 |
|
| Robert De Beaumont | |
| B: | 1049 |
| D: | 5 Jun 1118 |
| Elizabeth of Vermandois | |
| B: | 1081 |
| D: | 13 Feb 1131 |
