William Bertram
William was born in 1099 in Mitford, Northumberland, England.

 Hawise Balliol
Hawise was born about 1103 in Bywell, Northumberland, England.

 Roger Bertram
Roger was born about 1126.

 Guy Bertram
Guy was born about 1130.

 William Bertram
William was born about 1132.

 Richard Bertram
Richard was born about 1134 in Barony, Mitford, Northumberland, England.  He died about 1177.