Guillaume de Ponthieu

• 
• Born circa 915
• Deceased in 980, at the approximate age of 64 years

Parents

• Herbouin de Ponthieu (c. 890 - 945)
• Noëlle de Dammartin (895 - )

Family

• Married with Maud de Flandre (918 - 959), issuing
  • Arnoul (935 - 972)