Robert Ier De Poissy

Robert Ier was born about 1150.  Robert Ier's father was Gasce De Poissy.  His paternal grandparents were Gasce De Chaumont and Jacqueline De Poissy. He had a brother named Gasce.  He was the older of the two children.  He died before 1197.

‌Robert Ier and Elisabeth were married in a religious ceremony about 1170.  They had a son named Robert II.