William de Percy

• 
• Born in 1112
• Deceased in 1175, at the approximate age of 62 years

Parents

• William Percy (c. 1095 - c. 1133)
• Alice de Ros (c. 1096 - )

Family

• Married in 1136, with Alice de Clare, alias Alice de Tonbridge (1113 - 1166), issuing
  • Agnès (1134 - 1205)
  • Mathilde
• Married with Sibylle de Valoignes ( - 1212)