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- Geoffrey de Percy (Normandy, France; c1005-?) m: Margaret (bef1012)
- William de Percy, Earl of Caux and Poiters, (Normandy, France; c1030-1096; Turkey)
- m: Emma de Porte (Northumberland, England; c1038-?)
- Alan de Percy, 2nd Baron Percy (Yorkshire, England; c1067-?)
- m: Emma de Gaunt (c1097-?)
- William de Percy, 3rd Baron Percy (c1088-?)
- Alice de Ros (c1090-?)
- William de Percy, 4th Baron Percy (1192
- m: 1st, Alice de Clare (c1117-?)
- Lady Anges de Percy (1134-?)
- Countess Maud de Percy (c1148-?)
- William de Percy of Abbot of Whitby
- Richard de Percy
- Walter de Percy
- m: 2nd, Rohais de Tunbrigge
- m: erd, Sybyl de Valognes (c125-?)
- Serlo de Percy (c1117-?)
- Alan de Percy (c1120-?)
- Richard de Percy (c1122-?)
- Robert de Percy (c1124-?)
- Walter de Percy de Rugemond (c1090-?)
- Geoffrey de Percy (c1092-?)
- Henry de Percy (c1094-?)
- Gosfrid de Percy (c1096-?)
- Robert de Percy (c1098-?)
- Richard Percy
- William Percy
- Walker Percy
Descendants of Lady Agnes de Percy[]
- Lady Anges de Percy (1134-?)
- m: Joceline de Percy of Lorraine, 4th Baron Percy
- Sir Henry de Percy, Knt, 6th Baron Percy (1156-?)
- m: Lady Isabel de Brus
- Henry de Percy
- William de Percy, 7th Baron Percy (c1197-1245)
- m: 1st, Joan de Briwere
- Anatasia de Percy (c1216-?)
- Ada de Percy (1226-
- Angnes de Percy
- Joan de Percy
- m: 2nd, Eleanor de Baliol (c1200-?)
- Henry de Percy (1228-1272)
- William de Percy (c1231-?)
- Walter de Percy (c1233-?)
- Joceline de Percy (1238-?)
- Geffrey de Percy (c1239-?)
- Ingram de Percy (c1237-?)
- Maud de Louvain de Percy (c1168-?)
- Richard de Percy, 5th Baron Percy (1170-?)
- Joceline de Percy
- Ralph de Percy
- Robert de Percy