William De Bereford
William De was born about 1260 in Burton, Leicestershire, England.

 Margaret De Plessis
Margaret De was born about 1263 in Hook Norton, Banbury, Oxfordshire, England.

 Agnes De Bereford
Agnes De was born about 1290 in Burton, Leicestershire, England.  She died on July 18th, 1375 in Grey Friar's, London, Middlesex, England.