Biography
Jean was the youngest son ofMarriage and issue
John married firstly Jeanne,{{sfn, Perry, 2018, p=80 daughter of Geoffrey VI, Viscount of Châteaudun and Clemence de Roches. They had: * Blanche{{sfn, Perry, 2018, p=80 He married secondlyNotes
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*{{cite book , last=Perry , first=Guy , year=2013 , title=John of Brienne: King of Jerusalem, Emperor of Constantinople, c. 1175–1237 , publisher=Cambridge University Press , isbn=978-1-107-04310-7 *{{cite book , title=The Briennes: The Rise and Fall of a Champenois Dynasty in the Age of the Crusades, C. 950–1356 , first=Guy , last=Perry , publisher=Cambridge University Press , year=2018 {{authority control {{DEFAULTSORT:Brienne, John II de Year of birth unknown 1290s deaths 13th-century French people Lords of France Christians of the Seventh Crusade Sons of emperors {{France-noble-stub