Simon I (Seigneur of Montfort Amauri) De Montfort
Simon I (Seigneur of Montfort Amauri) was born in 1025 in Montfort, Eure, Normandie.¹   He died at the age of 62 in 1087 in St Thomas, Loire, Rhone-Alpes, France.¹ 

 Isabeau De Broyes
Isabeau was born about 1033 in Broyes, Marne, Champagne-Ardenne, France.¹   She died in 1058 in Eure Et Loire, Beauce, Centre, France.¹ 

 Isabeau Demontfort
Isabeau was born in 1055 in Montfort Sur Risle, Eure, Normandy, France.¹   She died at the age of 71 in 1126 in Guerny, Eure, Normandy, France.¹