William Percy
William was born in 1034 in Perci en Auge, Normandy, France.  He died at the age of 62 in 1096 in Mount Joy, Jerusalem.

 Emma Port
Emma was born in 1038 in Alnwick, Northumberland, Eng..  She died at the age of 60 in 1098.

 Alan Percy
Alan was born in Alnwick, Northumberland, Eng..  He died in December 1135.