Agnes de Locksley was born in England to Robert FitzOtes de Locksley (-bef1178) and died after 1178 England of unspecified causes. He married William de Trussell (-aft1178) .
Children
| Name | Birth | Death | Joined with |
| Richard de Trussell (-aft1268) | England | 1268 England | Unknown Mainsford (-c1268) |
Siblings
| Name | Birth | Death | Joined with |
| Agnes de Locksley (-saft1178) | England | 1178 England | William de Trussell (-aft1178) |