Enguerrand I Ponthieu
Enguerrand I was born in 1020 in Ponthieu, Ain, Rhone-Alpes, France.¹   He died at the age of 33 on October 25th, 1053 in Ponthieu, Somme, Picardie, France.¹ 

 Adelaide Degand
Adelaide was born in Ghent, Flanders, Belgium.²   She died on November 20th, 1052 in , , , France.² 

 + Hugh Deponthieu
+ Hugh was born in 1000 in Ponthieu, Somme, Picardie, France.³   He died at the age of 52 on November 20th, 1052 in St Riguier, , Picardie, France.³