de Ponthieu Agnes 
de Ponthieu was born about 1030. De Ponthieu's father was Guy I de Ponthieu and her mother is Ada. She is an only child.
They had a son named III Duke Alencon.
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Children
III Duke Alencon Guillaume
III Duke Alencon was born about 1055 in Normandy, , France.1 He died in 1172.2
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