Roger III Bertram
Roger III was born about 1220 in Mitford, Northumberland, England.  He died after 1264.

 Ida Isabel Bertram
Ida Isabel was born about 1220 in Raby, Durham, England.  She died after May 18th, 1315.

 Agnes Bertram
Agnes was born about 1205 in Mitford & Steinton, (England?).