Jean II De Brienne & Marie De Coucy 
Jean II and Marie were married in a religious ceremony in 1240 in Boves, Somme, France.1 They had a daughter named Blanche.
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Children
Blanche De Brienne
Blanche was born in 1245 in Courtrain, Mayenne, France.1 She died at the age of 57 in 1302 in Loupland, Maine, France.1
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