Simon I Seigneur de MONTFORT 
Simon I Seigneur de was born about 1030 in Monfort-L'Amaury, Yvelines, Ile-de-France, France. He died about 1087 in Epernon, Normandy, France.
They had a daughter named Bertrade de.
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Children
Bertrade de MONTFORT
Bertrade de was born about 1059 in Montfort-l'Amaury Castle, Ile-de-France, France. She died on February 11th, 1117 in Fontrevault, Poitiers, France.