| Father | Male Richard De Clare |
| Born | 28 Jul 1222 | Gloucester, Gloucester, England |
| Died | 8 Jul 1262 | Canterbury, Kent, England |
| Buried | 21 Jul 1262 | Tewkesbury, Gloucester, England |
| Married | 26 Jan 1238 | |
| Other Spouse | Margaret De Burgh | F8999 | |
| Married | 1235 | |
| Other Spouse | Margaret, Princess Of Scotland | F9000 | |
| Married | 1235 | |
| Father | Gilbert De Clare | F6826 Group Sheet | |
| Mother | Isabel Marshall | F6826 Group Sheet | |
| Mother | Female Maud De Lacy |
| Born | Abt 1222 | Lincoln, Lincolnshire, England |
| Christened | 1287 | |
| Died | 3 Mar 1288 | |
| Buried | ||
| Father | John De Lacy | F9013 Group Sheet | |
| Mother | Margaret De Quincy | F9013 Group Sheet | |
| Child 1 | Male + Gilbert De Clare, Earl |
| Born | 26 Aug 1243 | Christchurch, Hampshire, England |
| Died | 30 Nov 1295 | , Mammouth Castle, England |
| Buried | Tewksbury Abbey |
|
| Spouse | Alice Lusignan | F6454 | |
| Married | 1252 | |
| Spouse | Joan "Of Acre", England | F16373 | |
| Married | Apr 1290 | Westminister Abb, Westminster, Middlesex, England |
| Child 2 | Male + Thomas De Clare |
| Born | Abt 1247 | Tonebridge, Suffolk, England |
| Died | 22 Aug 1287 | , Clare, Ireland |
| Buried | ||
| Spouse | Julian Fitzmaurice | F9003 | |
| Married | , Essex, England |
|
| Spouse | Isabella Mrs De Clair | F9004 | |
| Married | ||
| Child 5 | Female Margaret De Clare |
| Born | Abt 1249 | Tonebridge, Suffolk, England |
| Died | Bef 8 Sep 1312 | |
| Buried | ||
| Spouse | Edmund Plantagenet | F9005 | |
| Married | , Ruislip, Middlesex, England |
|
| Child 6 | Female Maud De Clare |
| Born | Abt 1251 | Tonebridge, Suffolk, England |
| Died | ||
| Buried | ||
| Spouse | Robert Gifford | F9006 | |
| Married | ||
| Child 8 | Female + Roese De Clare |
| Born | 1255 | Tonebridge, Suffolk, England |
| Died | ||
| Buried | ||
| Spouse | Roger De Mowbray | F8965 | |
| Married | 1269 | |