Érard II, Count de BRIENNE & Agnès de MONTFAUCON 
Érard II, Count de and Agnès de were married in a religious ceremony in 1066.1 They had three sons and a daughter, named Gauthier, Gauthier III de Brienne, Duke of, Jean De and Ida de.
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Children
Gauthier III de Brienne, Duke of APULIA
Gauthier III de Brienne, Duke of was born before 1177. He died in June 1205.
Jean De BRIENNE
Jean De was born about 1195 in Of,Acre,,Palestine. He died on March 21st, 1237 in ,,Constantinople,Turkey.1
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