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

Jean I De was born in 1228.  Jean I De's father was Amaury VI De+ Montfort and his mother was Beatrix De+ Bourgogne.  His paternal grandparents were Simon III De+ Montfort and Alix De+ Montmorency; his maternal grandparents were Guigues VI+ De Bourgogne and Beatrix De+ Sabran. He had two sisters named Alix De+ and Laure De.  He was the oldest of the three children.  He died at the age of 21 in 1249 in Nicosia, Cyprus.


Jean I De's family with Jeanne De+ Chateaudun

‌Jean I De and Jeanne De+ were married in a religious ceremony about 1244.  They had a daughter named Beatrix De.


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