Herlouin I de PONTHIEU 
Herlouin I de was born about 0840 in Pontheiu, Aisne, France. Herlouin I de's father was Helgaud II de PONTHIEU and his mother was Bertha de PONTHIEU. His paternal grandfather was Nithard 'The Chronicler' de PONTHIEU; his maternal grandparents were Angilbert 'the Saint' de PONTHIEU and Bertha, Princess of Holy Roman Empire. He was an only child. He died about 0878.-
Ancestor Pedigree Chart
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- b.0721 in Lomme, France
- b.~ 0760 in Ponthieu, Ain, France d.~ 0814
- b.~ 0795 in Centulle, Ponthieu, France d.~ 0855
- b.2 APR 742 in Ingelmunster, West Flanders, France d.28 JAN 814 in Aachen, North Rhine-Westphalia, Prussia
- b.0779 in Aachen, North Rhine-Westphalia, Prussia d.0853
- b.0758 in Aachen,North Rhine-Westphalia, Prussia d.30 APR 783 in Thionville, Moselle, France
- b.~ 0816 d.~ 0864
- b.~ 0840 in Pontheiu, Aisne, France d.~ 0878
- b.0721 in Lomme, France
- b.~ 0776 in Ponthieu, Ain, France d.~ 0814
- b.~ 0805 in Centulle, Ponthieu, France d.0859
- b.2 APR 742 in Ingelmunster, West Flanders, France d.28 JAN 814 in Aachen, North Rhgine-Westphalia, Prussia
- b.0779 in Aachen, North Rhine-Westphalia, Prussia
- b.0758 in Aachen, North Rhine-Westphalia, Prussia d.30 APR 783 in THionville, Moselle, France
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He had a biological son named Heligaud II de.