Hardouin de Ponthieu
- Born in 797
- Deceased in 826, at the approximate age of 28 years
Parents
- Angilbert de Ponthieu (750 - 814)
- Berthe (Carolingiens) (779 - 823)
Family
- Married with Guérimburge de Mâcon (824 - ), issuing
Ansgarde (826 - 879)
- Married with Richilde d'Amiens (c. 795 - aft. 840)