Guillaume III De St. Maure
Guillaume III De was born about 1240 in Touraine,France.  He died in 1271.

 Jeanne De Rancon
Jeanne De was born about 1240 in Saintonge,France.  She died in 1302.

 Guillaume IV De Montbason De St. Maure
Guillaume IV De Montbason De was born about 1260 in Touraine,France.  He died in 1300.