Count Simon  I de Montfort
Count Simon  I was born in 1025 in Montfort, Eure, France.  He died at the age of 62 in 1087.

 Agnes d'Evereux
Agnes was born in 1030.

 Bertrade de Montfort
Bertrade was born in 1060.

 Amaury de Montfort
Amaury was born in 1070.  He died at the age of 67 on April 19th, 1137.