*William de Percy
born about 1088 Alnwick, Northumberland, England
died 1174/75

father:
*Allan (Algernon) de Percy
born about 1067 Alnwick, Northumberland, England
died before December 1135
buried Whitby, Yorkshire, England

mother:
*Emma de Gaunt (Gant)
born about 1071 Folkingham, Lincolnshire, England
buried before 1135
married about 1087 Folkingham, Lincolnshire, England

siblings:
Walter de Rugemond de Percy born about 1090 Whitby, Yorkshire, England died Whitby, Yorkshire, England
Geoffrey de Percy born about 1094 Whitby, Yorkshire, England
Henry de Percy born about 1096 Whitby, Yorkshire, England died after 1153
Robert de Percy born about 1098 Whitby, Yorkshire, England
daughter de Percy born about 1100 Whitby, Yorkshire, England
daughter de Percy born about 1102 Whitby, Yorkshire, England
Gaufrid de Percy born about 1104 Whitby, Yorkshire, England

spouse:
*Alice (Adeliza) de Tunbridge (Clare)
born about 1102 Tunbridge Castle, Kent, England
died after 1148 England

children:
Walter de Percy born about 1127 Whitby, Yorkshire, England died young
Alan de Percy born about 1128 Whitby, Yorkshire, England died after 1166 Whitby, Yorkshire, England
Richard de Percy born about 1130 Whitby, Yorkshire, England died young
William de Percy born about 1132 Whitby, Yorkshire, England died young
*Agnes de Percy born 1134 Whitby, Yorkshire, England christened Alnwick, Northumberland, England
died about 1205 buried before October 1213
Maud de Percy born about 1136 Topcliffe, Yorkshire, England died 1203 buried before 13 October 1204
Alan de Percy? born about 1138 Alnwick, Northumberland, England
Alice de Percy born 1144 Alnwick, Northumberland, England
Emma de Percy born 1146 Alnwick, Northumberland, England

biographical and/or anecdotal:

notes or source:
LDS