Alphonso De Vere
Alphonso was born about 1000 in Hedingham, Essex, England.

 Katherine of Flanders
Katherine of was born about 1010 in Flanders, Belgium.  Katherine of is no longer alive.

 Alberic De Vere
Alberic was born about 1030 in Hedington, Essex, England.  He died in 1112 in Colne Priory, Essex, England.  He was buried in Church of Colne Priory which he had founded.