| Family |
Ilbert de Lacy, b. 12 Mar 1040, Lassy, Calvados, Normandy, France d. Abt 1090, Pontefract Castle, Yorkshire, England, United Kingdom (Age 49 years) |
| Children |
| | 1. Baron Pontefract Robert de Laci, b. 1070, Halton, Cheshire, England, United Kingdom d. 1129, Yorkshire, England, United Kingdom (Age 59 years) |
| | 2. Hugh de Lacy, b. Abt 1072, Halton, Cheshire, England d. 1090, England, United Kingdom (Age 18 years) |
| | 3. Matilda de Lacy, b. Abt 1073, Yorkshire West Riding, England, United Kingdom d. DECEASED |
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