Guy III De Clermont
Guy III De was born about 1365.  He died  due to Killed in battle. on October 25th, 1415 in Azincort, France.

 Marguerite De Courcy
Marguerite De was born about 1370.  She died after 1415.

 Guy IV De Clermont
Guy IV De was born about 1390.  He died in 1473.