Baron William Bertram
William was born about 1099 in Castle Mitford, Nhum, England..

 Hawise Merley
Hawise was born in 1108 in Bywell, Northumberland, England.  Hawise is no longer alive.

 Baron Roger Bertram
Roger was born in 1126 in Castle Mitford, Nhum, England..  He died at the age of 48 in 1174.  He was buried in Brinkburn.

 Richard Bertram
Richard was born about 1134 in Mitford, Nhum, England..  He died before 1177.