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Male Jean I De Grandison Click to view Jean I De Grandison in the family tree

Jean I De was born about 1371.  Jean I De's father was Jacques De Grandison and his mother was Marguerite De Vergy.  His paternal grandfather was Othon De Grandison and his paternal grandmother is Jeanne De Pesmes; his maternal grandparents were Guillaume II De Vergy and Agnes De Durnay. He had a sister named Anne De.  He was the younger of the two children.  He died  due to killed at Nikopolis. on September 28th, 1396.


Jean I De's family with Catherine De Neufchatel

‌Jean I De and Catherine De were married in a religious ceremony in 1391.  They had a son and a daughter, named Guillaume De and Henriette De.


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