Walter II deBolbec
Walter II was born in 1130 in Styford, Northumberland, England.

 Sibil deVesey
Sibil was born in 1132 in Blanchland, Northumberland, England.  Sibil is no longer alive.

 Isabel deBolbec
Isabel was born in 1160.  She died at the age of 46 in 1206.