Gasce de Poissy

• 
• Born in 1140
• Deceased in 1160, at the approximate age of 19 years

Parents

• Gasce IV de Poissy (1105 - 1172)
• Mabille d'Yvetot (1125 - 1182)

Family

• Married with Jacqueline de Mantes (1136 - 1192), issuing
  • Pétronille (1158 - 1222)