Gasce De Poissy De Chateaufort

Gasce was born about 1150.  Gasce's father was Gasce De Poissy.  His paternal grandparents were Gasce De Chaumont and Jacqueline De Poissy. He had a brother named Robert Ier.  He was the younger of the two children.  He died on August 14th, 1189.

They had a daughter named Mahaut.