| Roger I de Bertram Baron Mitford (~1140 - 1199) |
Robert de Umfreville (~1157 - ~1195) |
| Ada (~1145 - ) |
[--?--] (~1161 - ) |
| Baron William Bertram | Alice Umfreville |
| b. abt 1165, Castle Mitford, Northumberland, England d. bur. occ. cen. im. . ud. |
b. abt 1180, Glamorgan, Wales d. bur. occ. cen. im. . ud. |
| Roger Bertram 3rd Baron |