Count Helgaud I of Ponthieu
Count Helgaud I of was born in 0821.  He died at the age of 43 in 0864.

 Princess Oneca of Pamplona Princess
Princess Oneca of was born in 0828.  She died at the age of 25 in 0853.

 Count Herluin I of Ponthieu
Count Herluin I of was born in 0845.  He died at the age of 33 in 0878.

 Princess Berthe of Ponthieu Princess
Princess Berthe of was born in 0849.