| Robert Marmion, 4th Lord of Tamworth (c. 1100-1143) |
Gervaid, Count of Rethel (c.1060-1124) |
| Unknown |
Elizabeth de Namur (c. 1090-c.1160) |
| Robert de Marmion, 5th Lord of Tamworth | Elisabeth de Rethel |
| b. c. 1132 d. before 1181 bur. occ. edu. rel. bp. |
b. c. 1124 d. 1160 bur. occ. edu. rel. bp. |