WILLIAM (Baron) BERTRAM
WILLIAM (Baron) was born about 1099 in Mitford, Northumberlandshire, England.¹ 

 HAWISE de BALLIOL
HAWISE was born about 1103 in Bywell, Northumberlandshire, England.¹ 

 ROGER de BERTRAM
ROGER was born about 1126 in Mitford Castle, Northumberlandshire, England.¹   He died after 1172.¹ 

 RICHARD (Baron) BERTRAM
RICHARD (Baron) was born in Bothal, Northumberlandshire, England.¹