Geoffery De Percy
Geoffery De was born about 1005 in Of, Perci En Auge, Normandy, France.¹   Geoffery De is no longer alive.

 Margaret De Percy
Margaret De was born about 1012 in Of, Alnwick, Northumberland, England.¹   Margaret De is no longer alive.

 Serlo De Percy
Serlo De was born about 1033 in Perci En Auge, Normandy, France.¹   He was buried in Whitby Abbey, Yorkshire, England.¹ 

 William De Percy
William De was born about 1034 in Perci En Auge, Normandy, France.¹   He died in 1096 in ,Mt Joy, Near Jerusalem.  He was buried in ,Mt Joy, Near Jerusalem.^1 1 

 Picot De Percy
Picot De was born about 1050 in Of, Bltn Upon Dearne, Yorkshire, England.¹   He died after 1125.¹