Ranulph De Bostock
Ranulph was born in 1155 in Henbury, Cheshire, England.  Ranulph is no longer alive.

 Margaret De Vernon
Margaret was born about 1165 in Shipbrook, Northwich, Cheshire, England.

 Warren De Bostock
Warren was born about 1180 in Henbury, Cheshire, England.  He died about 1206.