John of Brienne (c.1170 - c.1237) - Genealogy Genealogy for John of Brienne (c.1170 - c.1237) family tree on Geni, with over 140 million profiles of ancestors and living relatives. ... Also Known As: "Emperor of Constantinople", "King of Jerusalem", "John of /Brienne/", "né: Jean de Candia-Nevers", "