Reginald De Argentin
Reginald was born in 1098 in Wymondley, Hertford, England.  He died at the age of 32 in 1130.

 Lora De Montfort
Lora was born in 1103.  Lora is no longer alive.

 John De Argentin
John was born in 1123 in Wymondley, Hertford, England.  He died at the age of 75 in 1198.