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Male Emperor of Byzantium, King Jerusale John de Brienne Click to view Emperor of Byzantium, King Jerusale John de Brienne in the family tree

John was born in 1160.1  John's father was Gautier de Brienne II and his mother was Agnes de Garlande de Baudement.  His paternal grandparents were Erard de Brienne I and Alice Agnes de Roucy.  He was an only child.  He died at the age of 77 in 1237.1 

Family Details of John's family with Berengaria of Leon

Family Details of John's family with Mary de Montferrat

1 http://wc.rootsweb.com/cgi-bin/igm.cgi?op=PED&db=jdp-fam&id=I8321&style=TABLE

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