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Male Jean I De+ Brienne Click to view Jean I De+ Brienne in the family tree

Jean I De+ was born about 1186 in Acre, Palestine.  Jean I De+'s father is Erard II De+ Brienne and his mother is Agnes De+ Montfaucon.  His paternal grandparents are Gauthier II De+ Brienne and Nm+ Nesle; his maternal grandparents are Richard II De+ Montfaucon and Agnes De+ Montbeliard. He had a brother and a sister, named Gauthier III De+ and Ide De.  He was the youngest of the three children.  He died on March 21st, 1237 in Constantinople, Turkey.


Jean I De+'s first family with Marie Di Montferrato

‌Jean I De+ and Marie Di were married in a religious ceremony in 1210.  They had a daughter named Isabelle II De.


Jean I De+'s second family with Berenguela De+ Castilla

‌Jean I De+ and Berenguela De+ were married in a religious ceremony in 1223 in Burgos, Spain.  They had three sons and a daughter, named Jean II De+, Louis De+, Alphonse De+ and Marie De+.


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