Amauri de Montfort Seigneur de Montfort-l'Amauri
Amauri de Montfort Seigneur was born in 0990.  He died at the age of 41 in 1031.

 Bertrade de Gommetz
Bertrade was born in 0995.  Bertrade is no longer alive.

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