Hildouin De Roucy IV Count of Montdidier

Hildouin De Roucy IV Count of was born in 1010 in Montdidier, France.  Hildouin De Roucy IV Count of's father was Hildouin De Montdidier III Count of Montdidier.  His paternal grandfather was Hildouin De Montdidier II Count of Montdidier.  He was an only child.  He died at the age of 53 in 1063.

They had a son and a daughter, named Andrew Lord of Ramerupt & and Maurgurite.