Guillaume III Count of Ponthieu

Guillaume III Count of was born in 1179 in Ponthieu France.¹   Guillaume III Count of's father was John I Count De Ponthieu and his mother was Beatrice De St Pol.  His maternal grandparents were Anselme Count De St Pol Candavene and Eustachie of Champagne. He had a sister named Agnes.  He was the younger of the two children.  He died at the age of 42 on October 4th, 1221 in France.¹