Simon D'Avranches
Simon was born about 1160 in Folkestone, Kent, England.  Simon is no longer alive.

 Cecilia de Criol
Cecilia was born about 1170 in Sarre, Kent, England.  Cecilia is no longer alive.

 William D'Avranches
William was born about 1186 in Folkestone, Kent, England.  He died in 1263.

 Geoffrey D'Avranches
Geoffrey was born about 1190 in Folkestone, Kent, England.  He died on November 26th, 1236 in Bromland, Somersetshire, England.