| Male William De Tregoz |
| Birth | 1100 | Billingford, Norfolk, England, United Kingdom |
| Death | Yes, date unknown | |
| Burial | ||
| Marriage | ||
| Father | Lisire De Tregoz | F2724 Group Sheet | |
| Mother | ||
| Male + Sheriff Of Wiltshire Robert De Tregoz |
| Birth | 1145 | Salisbury, Wiltshire, England, United Kingdom |
| Death | 29 Apr 1215 | Ewyas Harold, Herefordshire, England, United Kingdom |
| Burial | ||
| Spouse | Sybilla, of Ewyas | F2722 | |
| Marriage | 1198 | |