| Father | Maurice 'Make Peace' FitzRobert FITZHARDING (1120 - 1190) |
| Mother | Alice de BERKELEY (1141 - 1190) |
| Sibling | Baron Thomas de BERKELEY 4th Baron of Berkeley, "The Observer" (1170 - 1243) |
| Sibling | Alice BERKELEY (1155 - 1157) |
| Sibling | Maud FITZHARDING DE BERKELEY (1160 - 1209) |
| Sibling | Robert the Rebellious De BERKELEY (1165 - 1220) |
| Sibling | Maurice BERKELEY (1166 - 1272) |
| Sibling | William BERKELEY (1168 - 1200) |
| Sibling | Baron Thomas FITZHARDING (1170 - ) |
| Sibling | William de BERKELEY (1170 - ) |
| Sibling | Henry de BERKELEY (1172 - ) |
| Sibling | Richard De BERKELEY (1174 - ) |
| Sibling | Maurice BERKELEY ( - 1272) |