*William Percy
born about 1138 Kildale, Yorkshire, England
died after 1202

father:
*Robert de Percy
born about 1105 Kildale, Yorkshire, England

mother:
*Agnes wife of Robert de Percy
(end of information)

siblings:
Henry Percy born about 1140 Kildale, Yorkshire, England

spouse:
*Agnes Flamville
born about 1153 Kildale, Yorkshire, England
died after 1214

children:
Agnes de Percy born about 1179 Kildale, Yorkshire, England
*Walter de Percy born about 1185 Kildale, Yorkshire, England
William de Percy born about 1187 Kildale, Yorkshire, England died after 1226

biographical and/or anecdotal:

notes or source:
LDS
ancestry.com