Roger de Bertram
Roger was born in Mitford, Northumberland, England.  He died in 1241.

 UNKNOWN Agnes
UNKNOWN was born before 1210.  She died after August 20th, 1253.

 Ida de Bertram
Ida was born in 1220 in Mitford, Northumberland, England.  She died after 1315.

 Roger de Bertram
Roger was born on December 5th, 1224 in Mitford, Northumberland, England.  He died about 1273.

 Agnes de Bertram
Agnes was born before 1241.  She died after 1244.