William dePercy IV Baron De Percy
William dePercy IV Baron was born in 1112 in North Riding, Yorkshire, England.  He died at the age of 56 in 1168.

 Adeliza de Clare
Adeliza was born in 1114 in Tunbridge, Kent, England.  She died at the age of 36 in 1150.

 Agnes dePercy
Agnes was born in 1134.  She died at the age of 70 in 1204.