Bishop Guillaume Montfort was born to Simon Montfort and Isabel Bardoul.
Bishop Guillaume Montfort was appointed Bishop of Paris.
Paternal Family Tree: Reginar aka Percy
Great x 4 Grandfather: Reginar "Longneck" Reginarids I Duke Lorraine 865-915
Great x 3 Grandfather: Reginar II Reginarids II Count Hainault 892-932
Great x 2 Grandfather: Aumary Reginarids
Great x 1 Grandfather: William Reginarids
GrandFather: Aumary Reginarids
Father: Simon Montfort
GrandMother: Bertrade Unknown
Mother: Isabel Bardoul