Roger de St. John
Roger de was born in 1110 in Compton, Sussexshire, England.  Roger de is no longer alive.

 Cecily de la Haye
Cecily de was born in 1114 in Brattleby, Lincolnshire, England.

 Muriel de St. John
Muriel de was born about 1130 in Compton, Sussexshire, England.