| Robert de Mortagne Earl of Cornwall, Count of Mo (1031 - 1091) |
Odo (Eudo) de Mortagne Bishop of Bayeux, Earl of Kent, etc. ( - 1096) |
| Maud (Matilda) de Montgomery Of Shrewsbury (~1041 - 1107) |
| William fitz Robert de Mortagne | Isabel fitz Richard? de Clare |
| b. abt 1060, Resided Mortaigne, France d. bur. occ. cen. im. . ud. |
b. abt 1062 d. bur. occ. cen. im. . ud. |
| Beatrix de Mortagne Aldhem or Aldelin de Burgh |