Robert de Massey was born circa 1102 in England, United Kingdom to Hamon I de Massey (c1056-c1101) and Margaret de Sacie (c1077-) and died after 1124 England, United Kingdom of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Robert de Massey (c1129-) | 1129 England, United Kingdom | ||
Siblings
| Name | Birth | Death | Joined with |
| Hamon II Massey (c1100-c1140) | 1100 England, United Kingdom | 1140 England, United Kingdom | Eleanor Beaumont (c1103-) |
| Robert de Massey (c1102-aft1124) | 1102 England, United Kingdom | 1124 England, United Kingdom | |
| Margaret de Massey (c1104-) | |||
| John de Massey (c1106-) | |||