Simon I "le Vieux" DE MONTFORT, Seigneur de Montfort-l'Amaury 1
- Born: Abt 1030, Montfort-l'Amaury, Yvelines, Ile-de-France, France
- Married (1): Abt 1055
- Married (2): Before 1070
- Died: 25 Sep 1087, St. Thomas, France
- Buried: Epernon, Eure-et-Loire, Beauce/Centre, France
"Ivo de Curba villa" dedicated "ecclesiæ Sanctorum Martyrum Gervasii et Protasii Cheonis" by charter dated to [1048/61], witnessed by “...Amalricus de Sparnoto, Simon et Mainerius filii eius...”. "Amalricus miles" founded the priory of Saint-Thomas d’Epernon, with the consent of "conjugis mee…Bertredis…et filiorum meorum…Simonis…atque Mainerii", by charter dated [11 Apr 1052/Jul 1053].
He succeeded his father as Seigneur de Montfort and completed the construction of the castle known as Montfort-l'Amaury which was started by his father. "…Simon de Monte forti…" witnessed the charter dated 29 May 1067 under which Philippe I King of France confirmed the possessions of Saint-Martin-des-Champs.
Orderic Vitalis records the death of “Simon de Monteforti, gener Ricardi comitis Ebroicensium”, dated to 1087 from the context. "Mainerium, fratrem Symonis de Monte Forti" donated property, with the consent of "Simone fratre eius comiteque Belli Montis Ivonis", by charter dated to before 1091, which also names "domnus Simon, filio suo Amalrico". 2
Simon married Isabelle DE BROYES Dame de Nogent-Le-Roi, daughter of Hugues "Bardoul" DE BROYES and Dame Elisabeth (Alvidis, Elvidis) DE SOURS, about 1055. (Isabelle DE BROYES was born about 1034 in Broyes, Marne, Champagne, France and died after 1058 in Nogent-le-Roi, Eure-et-Loire, Beauce/Centre, France.)
Simon also married Agnès D' EVREUX, daughter of Cte Richard D' EVREUX and Godechildis, before 1070. (Agnès D' EVREUX was born in Évreux, Eure, Haute-Normandie, France.)