1st Baron De Percy William
1st Baron De Percy was born in 1034 in Normandy, France.  He died at the age of 63 in 1097 in Mountjoy, near Jerusalem.

 Emma la Port
Emma was born about 1035 in Northumberland, England.  Emma is no longer alive.

 Baron De Percy Alan
Baron De Percy was born in 1069.  He died at the age of 66 in December 1135.

 Emma De Percy
Emma was born about 1079.