| Male William De Tregoz |
| Birth | Abt 1100 | Billingford, Norfolk, England, United Kingdom |
| Death | Yes, date unknown | |
| Burial | ||
| Marriage | Abt 1122 | Billingford, Norfolk, England, United Kingdom |
| Father | Lesire De Tregoz | F4365 Group Sheet | |
| Mother | ||
| Female Agnes |
| Birth | Abt 1102 | Billingford, Norfolk, England, United Kingdom |
| Death | Aft 1198 | |
| Burial | ||
| Father | ||
| Mother | ||
| Male + Robert De Tregoz |
| Birth | Abt 1152 | Salisbury, Wiltshire, England, United Kingdom |
| Death | Abt 1215 | Ewyas Harold, Herefordshire, England, United Kingdom |
| Burial | ||
| Spouse | Sibil De Ewyas | F4351 | |
| Marriage | Abt 1189 | Salisbury, Wiltshire, England, United Kingdom |