Pétronille de Poissy
dame de Mantes puis Vicomtesse
- Born in 1158 in Poissy
- Deceased in 1222, at the approximate age of 63 years
Parents
- Gasce de Poissy (1140 - 1160)
- Jacqueline de Mantes (1136 - 1192)
Family
- Married with Hugues de Chaumont En Vexin (1150 - 1209), issuing
Girard (1183 - 1243)