

| Name | William De Clare | |
| Birth | 1228 | |
| Gender | Male | |
| Death | 1258 | |
| Person ID | I102008582589 | All Ancestry |
| Last Modified | 9 Dec 2024 | |
| Father | 4th Earl of Hertford Gilbert De Clare, b. 1180 d. 25 Oct 1230 (Age 50 years) | |
| Mother | Isabel Marshall | |
| Family ID | F4692 | Group Sheet | Family Chart |
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