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Female Blanche de Brienne Click to view Blanche de Brienne in the family tree

Blanche was born in 1245 in Courtrain, Mayenne, France.  Blanche's father was Jean II de Brienne and her mother was Jeanne de Chateaudun.  Her paternal grandparents were Jean de Brienne and Princess of Castile and Läeon Berenguela; her maternal grandparents were Geoffrey IV de Chateaudun and Clemence des Roches.  She was an only child.  She died at the age of 57 in 1302 in Loupland, Maine, France.


Blanche's family with William II de Fiennes

They had two sons and two daughters, named Robert, Jean, Margaret Eleanor and Joane.

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