Robert de Percy , Lord of Kildale
Robert de was born about 1118 in Kildale, North Ride Yorkshire, England.  He died before 1170 in Ormesby, Guisborough, North Ride Yorkshire, England.

 Agnes
Agnes was born about 1120 in Yorkshire, England.  She died after 1160.

 William de Percy , Lord of Kildale
William de was born about 1140 in Kildale, North Ride Yorkshire, England.  He died before September 29th, 1204 in Ormesby, Guisborough, North Ride Yorkshire, England.