Guillaume Talvas de Montgommery
comte d'Alençon et de Ponthieu
- Born in 1095
- Deceased on March 7, 1172, at the approximate age of 76 years
Parents
- Robert de Montgommery (c. 1057 - )
- Agnès de Ponthieu (c. 1075 - c. 1126)
Family
- Married with Hélie de Bourgogne (1082 - 1141), issuing
