Thierry II De Ponthieu

Thierry II was born about 0685.  Thierry II's father was Walmar De  Boulogne and his mother was ? De Ponthieu.  His paternal grandparents were Wilmer De  Boulogne and Ada N...; his maternal grandfather was Thierry Ier De Ponthieu.  He was an only child.  He died in 0734.

He had a biological daughter named ?.